# Free calculators by Infikey Technologies

> Free calculators from Infikey Technologies for planning software, AI, SaaS, cloud and marketing decisions — LLM token costs, uptime SLAs, Google Ads budgets, SaaS metrics, plus scoping tools for app, website, chatbot and offshore team projects.

All tools are free with no sign-up. Instant calculators render results server-side from URL query parameters, so a link opens with the answer already on the page. Estimate tools never show automated prices; they collect requirements and an Infikey engineer replies.

- Interactive hub: https://infikeytechnologies.com/tools
- JSON API (no key): https://infikeytechnologies.com/api/tools
- OpenAPI spec: https://infikeytechnologies.com/api/tools/openapi.json

## Development cost

### [App development cost calculator](https://infikeytechnologies.com/tools/app-development-cost-calculator)

App development cost depends mainly on the number of platforms (iOS, Android, web), the features (payments, chat, maps, video, AI), the depth of custom design and the integrations with other systems. Cross-platform frameworks such as Flutter or React Native let one codebase serve iOS and Android. Choose your options below and Infikey replies with a scoped estimate for your exact app.

- Type: estimate request
- Plain text: https://infikeytechnologies.com/tools/app-development-cost-calculator.md
- Parameters: `platforms`, `app_type`, `features`, `design`, `stage`, `timeline`, `budget`

### ["App like X" cost calculator](https://infikeytechnologies.com/tools/app-like-cost-calculator)

Building an app like Uber, Swiggy or Airbnb usually means building three products: a customer app, a provider or partner app, and an admin panel, plus the backend that matches orders, takes payments and tracks locations in real time. The cost depends on which of the famous app’s features you really need for launch. Pick the closest app below, adjust the features, and Infikey replies with a scoped estimate.

- Type: estimate request
- Plain text: https://infikeytechnologies.com/tools/app-like-cost-calculator.md
- Parameters: `app_like`, `other_app`, `apps`, `platforms`, `scope`, `twist`, `launch_market`, `timeline`, `budget`

### [Website cost calculator](https://infikeytechnologies.com/tools/website-cost-calculator)

Website cost depends on the type of site (company site, e-commerce store, portal or web app), the number of unique page layouts, custom design, content writing, integrations such as payments, CRM or booking, and the platform — WordPress, Shopify, Webflow or a custom build. Select what you need below and Infikey replies with a scoped estimate.

- Type: estimate request
- Plain text: https://infikeytechnologies.com/tools/website-cost-calculator.md
- Parameters: `site_type`, `pages`, `features`, `platform`, `design`, `current_site`, `timeline`, `budget`

### [E-commerce website cost calculator](https://infikeytechnologies.com/tools/ecommerce-website-cost-calculator)

E-commerce website cost depends on the platform (Shopify, WooCommerce, Magento or a custom build), the size and complexity of the catalogue, payment and shipping rules, integrations with inventory, ERP or accounting, and whether other sellers will list products (a marketplace). Monthly platform, app and payment fees add to the build. Choose your options below and Infikey replies with a scoped estimate.

- Type: estimate request
- Plain text: https://infikeytechnologies.com/tools/ecommerce-website-cost-calculator.md
- Parameters: `store_type`, `products`, `features`, `integrations`, `platform`, `design`, `current_store`, `timeline`, `budget`

### [Custom software cost calculator](https://infikeytechnologies.com/tools/custom-software-cost-calculator)

Custom software cost is driven by the number of modules and user roles, the complexity of business rules and approvals, integrations with existing systems, data migration, reporting, and security or compliance needs. Starting with the workflow that costs your team the most time keeps the first release focused. Describe your system below and Infikey replies with a scoped estimate and delivery plan.

- Type: estimate request
- Plain text: https://infikeytechnologies.com/tools/custom-software-cost-calculator.md
- Parameters: `system_type`, `users`, `roles`, `modules`, `integrations`, `data_migration`, `hosting`, `compliance`, `timeline`, `budget`

### [SaaS MVP cost calculator](https://infikeytechnologies.com/tools/saas-mvp-cost-calculator)

A SaaS MVP needs more than the core feature: sign-up and team accounts, multi-tenant data separation, subscription billing, an admin console, email notifications, analytics and secure hosting. Cost depends on how much of this the first release needs and on integrations and compliance. An MVP proves demand with the smallest set; version 1 adds what paying customers expect. Scope yours below for an estimate from Infikey.

- Type: estimate request
- Plain text: https://infikeytechnologies.com/tools/saas-mvp-cost-calculator.md
- Parameters: `release`, `audience`, `core`, `integrations`, `compliance`, `stage`, `product`, `timeline`, `budget`

### [Software project timeline estimator](https://infikeytechnologies.com/tools/project-timeline-estimator)

A software project timeline is the sum of its phases: discovery, design, development, testing and launch. Development time grows with the number of unique screens and integrations and their complexity, and shrinks — less than proportionally — as developers are added, because coordination takes time. Design can overlap with development. Enter your scope below to see a phase-by-phase plan in weeks.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/project-timeline-estimator.md
- Parameters: `project_type`, `complexity`, `screens`, `integrations`, `developers`, `design_ready`

### [Software maintenance cost calculator](https://infikeytechnologies.com/tools/software-maintenance-cost-calculator)

A common rule of thumb is that software maintenance costs 15–25% of the original build cost every year, covering bug fixes, security patches, operating-system and framework updates, monitoring and small improvements. Hosting, third-party licences and API fees come on top. A higher support level, such as 24×7 response with an SLA, raises the budget. Enter your numbers below for a yearly and multi-year estimate.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/software-maintenance-cost-calculator.md
- Parameters: `currency`, `build_cost`, `rate`, `level`, `hosting`, `licences`, `years`

### [Logo & branding cost calculator](https://infikeytechnologies.com/tools/logo-branding-cost-calculator)

Logo and branding cost depends on what you need beyond the logo itself: research and strategy, the number of initial concepts and revision rounds, a brand guideline document, and applications such as stationery, social media templates, packaging, signage and presentation decks. A refresh of an existing brand usually needs less exploration than a new one. Choose your deliverables below and Infikey replies with a costed proposal.

- Type: estimate request
- Plain text: https://infikeytechnologies.com/tools/logo-branding-cost-calculator.md
- Parameters: `stage`, `deliverables`, `concepts`, `industry`, `style`, `markets`, `timeline`, `budget`

## Team & outsourcing

### [Offshore team vs in-house cost calculator](https://infikeytechnologies.com/tools/offshore-team-cost-calculator)

The true cost of an in-house developer is more than salary: recruitment, benefits, payroll taxes, equipment, office space, management time and the months a role stays unfilled. A dedicated offshore team bundles these into one monthly rate. Tell us the roles, seniority and working hours you need, and Infikey replies with a team proposal you can compare like-for-like.

- Type: estimate request
- Plain text: https://infikeytechnologies.com/tools/offshore-team-cost-calculator.md
- Parameters: `roles`, `team_size`, `seniority`, `engagement`, `duration`, `overlap`, `compare_with`, `stack`

### [Dedicated developer cost calculator](https://infikeytechnologies.com/tools/dedicated-developer-cost-calculator)

A dedicated developer works only on your product, full-time or part-time, usually on a monthly rate that covers salary, benefits, equipment, office, HR and replacement cover. The rate depends on the role, seniority, technology stack, working-hours overlap and contract length. Choose what you need below and Infikey replies with monthly rates and developer profiles you can interview.

- Type: estimate request
- Plain text: https://infikeytechnologies.com/tools/dedicated-developer-cost-calculator.md
- Parameters: `role`, `seniority`, `count`, `hours`, `duration`, `overlap`, `stack`, `start`

### [Fixed price vs time & materials calculator](https://infikeytechnologies.com/tools/fixed-price-vs-time-and-materials-calculator)

Fixed price suits projects with a clear, stable scope: the vendor carries the delivery risk and you know the cost up front. Time and materials (T&M) suits evolving products: you pay for the hours worked and can change priorities every sprint. Many projects use a hybrid — a fixed-price discovery phase followed by T&M sprints with a budget cap. Answer the questions below to see which fits your project.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/fixed-price-vs-time-and-materials-calculator.md
- Parameters: `scope`, `changes`, `budget`, `involvement`, `duration`, `discovery`

### [Freelancer vs agency vs in-house calculator](https://infikeytechnologies.com/tools/freelancer-vs-agency-vs-in-house-calculator)

Compare the three options on total cost, not hourly rate. A freelancer’s rate looks lowest but adds your management time and continuity risk. An agency rate includes project management, QA and cover. An in-house hire adds benefits, equipment and recruitment costs on top of salary, and usually takes months to start — so it rarely pays off for projects shorter than a year. Enter your own rates below.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/freelancer-vs-agency-vs-in-house-calculator.md
- Parameters: `currency`, `hours`, `months`, `freelancer_rate`, `freelancer_overhead`, `agency_rate`, `salary`, `employer_overhead`, `recruitment`, `hiring_months`

### [Sprint capacity & velocity calculator](https://infikeytechnologies.com/tools/sprint-capacity-calculator)

Sprint capacity is the focused working time a team has in a sprint: people × working days, minus leave and holidays, × focus hours per day, minus time for scrum ceremonies and meetings. To plan story points, scale your average velocity by available capacity compared with a full sprint. Dividing the remaining backlog by that velocity gives the number of sprints, and so a delivery date.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/sprint-capacity-calculator.md
- Parameters: `members`, `sprint_days`, `days_off`, `focus_hours`, `ceremonies`, `velocity`, `backlog`

## Marketing

### [Google Ads budget & ROAS calculator](https://infikeytechnologies.com/tools/google-ads-budget-calculator)

Your Google Ads budget = target leads ÷ conversion rate × cost per click. For example, 50 leads a month at a 4% conversion rate and $2.50 CPC needs 1,250 clicks, or about $3,125 a month — a $62.50 cost per lead. Campaigns are profitable when ROAS (revenue ÷ ad spend) is above break-even ROAS, which is 1 ÷ gross margin.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/google-ads-budget-calculator.md
- Parameters: `currency`, `leads`, `conversion_rate`, `cpc`, `close_rate`, `deal_value`, `margin`

### [ROAS & break-even ROAS calculator](https://infikeytechnologies.com/tools/roas-calculator)

ROAS (return on ad spend) is revenue from ads divided by ad spend: $20,000 of revenue from $5,000 of ads is a 4x ROAS. Whether that is profitable depends on margin. Break-even ROAS is 1 ÷ gross margin — at a 40% margin you need 2.5x just to cover ad spend. To earn a target profit, aim for 1 ÷ (margin − target profit margin).

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/roas-calculator.md
- Parameters: `currency`, `spend`, `revenue`, `margin`, `fees`, `target_profit`

### [Marketing ROI calculator](https://infikeytechnologies.com/tools/marketing-roi-calculator)

Marketing ROI = (gross profit from the campaign − campaign cost) ÷ campaign cost. Using gross profit rather than revenue gives the true return: $30,000 of revenue at a 50% margin from a $10,000 campaign is a 50% ROI, not 200%. Include every cost — media, agency fees, creative, tools and staff time — and only revenue the campaign really caused.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/marketing-roi-calculator.md
- Parameters: `currency`, `media`, `other_costs`, `revenue`, `margin`, `baseline`

### [Customer acquisition cost (CAC) calculator](https://infikeytechnologies.com/tools/customer-acquisition-cost-calculator)

Customer acquisition cost (CAC) is total sales and marketing spend divided by the number of new customers won in the same period. Channel CAC divides each channel’s spend by the customers it brought in; blended CAC adds shared costs such as the sales team and tools. CAC payback — CAC ÷ monthly gross profit per customer — shows how long a customer takes to repay their cost.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/customer-acquisition-cost-calculator.md
- Parameters: `currency`, `spend_search`, `customers_search`, `spend_social`, `customers_social`, `spend_content`, `customers_content`, `spend_other`, `customers_other`, `shared`, `arpa`, `margin`

### [Lead funnel & conversion calculator](https://infikeytechnologies.com/tools/lead-funnel-calculator)

A lead funnel multiplies conversion rates stage by stage: visitors × visitor-to-lead rate = leads; leads × qualification rate = qualified leads; qualified leads × close rate = customers; customers × average deal value = revenue. Working backwards from a revenue target gives the traffic you need. Improving the weakest stage usually adds more revenue than buying more traffic.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/lead-funnel-calculator.md
- Parameters: `currency`, `visitors`, `lead_rate`, `qualified_rate`, `close_rate`, `deal_value`, `target_revenue`

### [SEO traffic value calculator](https://infikeytechnologies.com/tools/seo-traffic-value-calculator)

SEO traffic value is the amount you would have to spend on Google Ads to buy the same clicks: monthly non-brand organic visits × the average cost per click for those keywords. Brand searches are usually excluded because you would win them cheaply anyway. Combined with your conversion rate and lead value, it shows both the ad-equivalent value and the real revenue your organic traffic brings.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/seo-traffic-value-calculator.md
- Parameters: `currency`, `visits`, `non_brand`, `cpc`, `conversion_rate`, `value`

### [SEO ROI forecast calculator](https://infikeytechnologies.com/tools/seo-roi-calculator)

An SEO ROI forecast multiplies the monthly search volume of your target keywords by the click-through rate of the position you expect to reach, then by your conversion and close rates and deal value. Rankings build gradually, so the forecast ramps traffic up over several months. ROI compares the gross profit from that revenue with the SEO investment over the same period.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/seo-roi-calculator.md
- Parameters: `currency`, `volume`, `position`, `conversion_rate`, `close_rate`, `deal_value`, `margin`, `budget`, `ramp`, `months`

### [Marketing budget calculator](https://infikeytechnologies.com/tools/marketing-budget-calculator)

Most companies set the marketing budget as a percentage of revenue. Gartner’s 2026 CMO Spend Survey puts average marketing budgets at 7.8% of company revenue, but the right share depends on the business: manufacturers often spend low single digits, while fast-growing SaaS companies spend far more. Pick your business type and growth goal below for a budget and a suggested channel split.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/marketing-budget-calculator.md
- Parameters: `currency`, `revenue`, `business`, `goal`, `custom_percent`

### [Email marketing ROI calculator](https://infikeytechnologies.com/tools/email-marketing-roi-calculator)

Email revenue = emails delivered × open rate × click-to-open rate × conversion rate × average order value. ROI compares that revenue with the cost of your email platform, content and design. Because open rates are inflated by privacy features such as Apple Mail Privacy Protection, clicks and orders are the more reliable measures of how a list performs.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/email-marketing-roi-calculator.md
- Parameters: `currency`, `subscribers`, `emails`, `delivery`, `open_rate`, `ctor`, `conversion`, `order_value`, `cost`

### [Social media engagement rate calculator](https://infikeytechnologies.com/tools/engagement-rate-calculator)

Engagement rate by followers = (likes + comments + shares + saves) ÷ followers ÷ number of posts × 100. Engagement rate by reach divides by the people who actually saw the posts, which is fairer for accounts whose reach varies. Benchmarks differ widely by platform: TikTok engagement tends to be far higher than Facebook or X, so compare like with like.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/engagement-rate-calculator.md
- Parameters: `platform`, `followers`, `posts`, `likes`, `comments`, `shares`, `saves`, `reach`, `impressions`

## AI

### [AI chatbot cost calculator](https://infikeytechnologies.com/tools/ai-chatbot-cost-calculator)

An AI chatbot has two costs: the one-time build (conversation design, connecting your knowledge sources, integrations, testing and guardrails) and the running cost (LLM tokens, hosting, vector search and monitoring). Build cost grows with channels and integrations; running cost grows with conversation volume and model choice. Scope yours below and Infikey replies with both estimates.

- Type: estimate request
- Plain text: https://infikeytechnologies.com/tools/ai-chatbot-cost-calculator.md
- Parameters: `use_case`, `channels`, `knowledge`, `integrations`, `volume`, `languages`, `model`, `residency`, `timeline`

### [LLM token & API cost calculator](https://infikeytechnologies.com/tools/llm-token-cost-calculator)

LLM APIs charge per million tokens, with output tokens costing 5–8 times more than input. Monthly cost = requests × (input tokens × input price + output tokens × output price) ÷ 1,000,000. For example, 1,000 requests a day with 1,500 input and 400 output tokens costs about $210 a month on GPT-6.1 Sol or Claude Sonnet 5.5, and about $11 on GPT-6 Luna.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/llm-token-cost-calculator.md
- Parameters: `model`, `requests`, `input_tokens`, `output_tokens`, `cached`, `days`

### [AI support agent vs human support cost calculator](https://infikeytechnologies.com/tools/ai-customer-support-cost-calculator)

An AI support agent answers every incoming conversation first and resolves a share of them — order status, policies, how-to questions — handing the rest to human agents. Savings = human cost for the tickets AI resolves − the AI cost per conversation − platform fees. With 5,000 tickets a month and a 50% AI resolution rate, roughly half the agent workload is freed for complex cases.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/ai-customer-support-cost-calculator.md
- Parameters: `currency`, `tickets`, `agent_cost`, `tickets_per_agent`, `resolution`, `ai_cost`, `platform_fee`, `setup_cost`

### [AI automation ROI calculator](https://infikeytechnologies.com/tools/ai-automation-roi-calculator)

AI automation ROI starts with the time a task takes today: tasks per month × minutes per task × hourly cost. Multiply by the share AI can automate, subtract AI running and maintenance costs, and you have the monthly saving. Payback is the one-off build cost divided by that saving. Document processing, data entry, email triage and report writing are common high-ROI candidates.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/ai-automation-roi-calculator.md
- Parameters: `currency`, `tasks`, `minutes`, `hourly_cost`, `automation`, `ai_cost`, `monthly_fixed`, `build_cost`

### [AI assistant on your documents (RAG) cost calculator](https://infikeytechnologies.com/tools/rag-ai-assistant-cost-calculator)

An AI assistant on your own documents uses retrieval-augmented generation (RAG): documents are split into passages, indexed in a vector database, and the most relevant passages are given to a language model to answer each question with citations. Cost depends on the number and type of sources, document volume, user permissions, query volume, model choice and where it is hosted. Scope yours below for an estimate.

- Type: estimate request
- Plain text: https://infikeytechnologies.com/tools/rag-ai-assistant-cost-calculator.md
- Parameters: `use_case`, `sources`, `volume`, `users`, `permissions`, `interfaces`, `hosting`, `compliance`, `timeline`

### [Voice AI agent vs call centre cost calculator](https://infikeytechnologies.com/tools/voice-ai-agent-cost-calculator)

A voice AI agent is usually priced per minute of conversation, covering speech recognition, the language model, text-to-speech and telephony. A human call centre costs agents’ paid hours, including time between calls and after-call work. Compare them per call: AI cost = minutes × AI rate; human cost = (talk + wrap-up minutes) ÷ occupancy × hourly cost. Calls the AI cannot finish are transferred to a person.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/voice-ai-agent-cost-calculator.md
- Parameters: `currency`, `calls`, `minutes`, `ai_rate`, `handled`, `hourly`, `wrap_up`, `occupancy`, `platform_fee`

### [AI content generation savings calculator](https://infikeytechnologies.com/tools/ai-content-cost-savings-calculator)

AI-assisted content does not remove people from the process; it shortens drafting. Manual cost per article = writer hours × hourly rate. AI-assisted cost = (research, editing and fact-checking hours) × rate + AI tool costs. The saving is largest for structured content such as product descriptions and summaries, and smallest for original thought leadership, which still needs expert time.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/ai-content-cost-savings-calculator.md
- Parameters: `currency`, `pieces`, `manual_hours`, `ai_hours`, `rate`, `tool_cost`, `review_cost`

### [AI readiness assessment](https://infikeytechnologies.com/tools/ai-readiness-score-calculator)

AI readiness is how prepared a business is to get value from AI. It rests on eight areas: accessible data, documented processes, clear use cases, leadership support, skills, technology with APIs, governance for safe use, and budget. Businesses rarely need to be strong in all eight to start — a pilot needs good data and a clear use case. Answer the questions below for your score and next steps.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/ai-readiness-score-calculator.md
- Parameters: `data`, `processes`, `use_cases`, `leadership`, `skills`, `technology`, `governance`, `budget`

## SaaS

### [SaaS metrics calculator (MRR, churn, LTV, CAC)](https://infikeytechnologies.com/tools/saas-metrics-calculator)

MRR is paying customers × average revenue per account (ARPA); ARR is MRR × 12. Monthly churn is customers lost ÷ customers at the start of the month. LTV = ARPA × gross margin ÷ churn rate, and a healthy SaaS business usually aims for an LTV:CAC ratio of 3:1 or better with CAC paid back within about 12 months.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/saas-metrics-calculator.md
- Parameters: `currency`, `customers`, `arpa`, `new_customers`, `churned`, `expansion`, `contraction`, `margin`, `cac`

### [Churn rate & retention calculator](https://infikeytechnologies.com/tools/churn-rate-calculator)

Churn rate = customers lost during a period ÷ customers at the start of that period. Monthly churn does not convert to annual churn by multiplying by 12: annual churn = 1 − (1 − monthly churn)¹². So 3% monthly churn is about 31% a year, not 36%. Average customer lifetime is roughly 1 ÷ monthly churn — about 33 months at 3%.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/churn-rate-calculator.md
- Parameters: `period`, `start`, `lost`, `new`, `months`

### [Customer lifetime value (LTV) calculator](https://infikeytechnologies.com/tools/customer-lifetime-value-calculator)

Customer lifetime value (LTV or CLV) is the gross profit a customer brings over their whole relationship with you. For subscriptions: LTV = monthly revenue per customer × gross margin ÷ monthly churn. For repeat purchases: LTV = average order value × orders per year × years as a customer × gross margin. Dividing LTV by three gives a common ceiling for customer acquisition cost.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/customer-lifetime-value-calculator.md
- Parameters: `currency`, `model`, `value`, `churn`, `orders`, `years`, `margin`, `discount`

### [LTV:CAC ratio & CAC payback calculator](https://infikeytechnologies.com/tools/ltv-cac-ratio-calculator)

LTV:CAC compares the gross profit a customer brings over their lifetime with the cost of acquiring them; 3:1 or better is the commonly cited target. CAC payback is CAC ÷ monthly gross profit per customer — ideally under 12 months. Because some customers churn before paying back, the churn-adjusted payback, which counts only customers who remain, is longer than the simple figure.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/ltv-cac-ratio-calculator.md
- Parameters: `currency`, `cac`, `arpa`, `margin`, `churn`

### [Burn rate & runway calculator](https://infikeytechnologies.com/tools/burn-rate-runway-calculator)

Gross burn is total monthly spending; net burn is spending minus revenue. Runway = cash in the bank ÷ net burn. With $500,000 in cash, $90,000 of monthly costs and $40,000 of revenue, net burn is $50,000 and runway is 10 months. If revenue grows faster than costs, runway stretches; the company is “default alive” if it reaches break-even before the cash runs out.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/burn-rate-runway-calculator.md
- Parameters: `currency`, `cash`, `revenue`, `expenses`, `revenue_growth`, `expense_growth`

### [Net revenue retention (NRR) calculator](https://infikeytechnologies.com/tools/net-revenue-retention-calculator)

Net revenue retention (NRR) = (starting recurring revenue + expansion − contraction − churned revenue) ÷ starting recurring revenue, measured on the same group of customers. Above 100% means existing customers grow revenue on their own. Gross revenue retention (GRR) leaves expansion out and can never exceed 100%; it shows how well you keep the revenue you already have.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/net-revenue-retention-calculator.md
- Parameters: `currency`, `period`, `start`, `expansion`, `contraction`, `churned`

### [SaaS pricing & freemium conversion calculator](https://infikeytechnologies.com/tools/saas-pricing-freemium-calculator)

SaaS revenue from self-serve sign-ups = sign-ups × free-to-paid (or trial) conversion rate × blended price, minus churn. Blended price, or ARPA, is the average of your tier prices weighted by how many customers choose each tier. Freemium usually converts a few percent of users and free trials convert more, so small changes in conversion or tier mix move MRR as much as price changes do.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/saas-pricing-freemium-calculator.md
- Parameters: `currency`, `model`, `signups`, `conversion`, `price_1`, `mix_1`, `price_2`, `mix_2`, `price_3`, `mix_3`, `churn`, `free_cost`, `months`

### [Build vs buy software calculator](https://infikeytechnologies.com/tools/build-vs-buy-software-calculator)

Build vs buy comes down to total cost of ownership over the system’s life. Buying SaaS has a low start-up cost but per-user fees that grow with your team and with annual price rises. Building has a higher upfront cost plus yearly maintenance and hosting, but costs barely change as users grow. The break-even year is when cumulative SaaS fees overtake the custom build’s total cost.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/build-vs-buy-software-calculator.md
- Parameters: `currency`, `users`, `user_growth`, `seat_price`, `price_increase`, `saas_extras`, `saas_setup`, `build_cost`, `maintenance`, `hosting`, `years`

## Cloud & infrastructure

### [Uptime SLA calculator](https://infikeytechnologies.com/tools/uptime-sla-calculator)

An uptime SLA states the share of time a service must be available. 99.9% uptime ("three nines") allows about 43 minutes 50 seconds of downtime per month, or 8 hours 46 minutes per year. 99.99% allows about 4 minutes 23 seconds per month, and 99.999% about 26 seconds. When services depend on each other, their availabilities multiply, so the combined SLA is lower than any single one.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/uptime-sla-calculator.md
- Parameters: `uptime`, `components`

### [Cloud migration cost savings calculator](https://infikeytechnologies.com/tools/cloud-migration-cost-savings-calculator)

Cloud migration saves money when the yearly cost of owning servers — hardware spread over its refresh cycle, data centre space, power, admin time and licences — is higher than the cloud bill plus cloud operations. Right-sizing, auto-scaling and switching off idle environments usually cut the cloud bill well below a like-for-like copy of your servers. The payback period is the one-off migration cost divided by the yearly saving.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/cloud-migration-cost-savings-calculator.md
- Parameters: `currency`, `servers`, `hardware`, `refresh_years`, `facility`, `admin_hours`, `hourly_cost`, `licences`, `cloud_per_server`, `rightsizing`, `cloud_admin`, `cloud_licences`, `migration_cost`, `years`

### [Downtime cost calculator](https://infikeytechnologies.com/tools/downtime-cost-calculator)

The cost of downtime per hour is lost revenue (revenue per operating hour × the share that stops during an outage) plus lost productivity (affected staff × hourly cost × share of work they cannot do) plus recovery costs. Multiply by expected downtime hours a year for the annual cost. Reputation damage and SLA penalties come on top and are often larger for customer-facing systems.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/downtime-cost-calculator.md
- Parameters: `currency`, `revenue`, `revenue_share`, `hours`, `employees`, `hourly_cost`, `productivity_loss`, `recovery`, `uptime`, `incidents`, `target_uptime`

### [Technical debt cost calculator](https://infikeytechnologies.com/tools/technical-debt-cost-calculator)

Technical debt costs the share of developer time spent working around old code, fixing avoidable bugs and handling fragile releases, plus the cost of incidents it causes. Multiply your team’s yearly cost by the share of time lost and add incident costs. Paying debt down — refactoring, tests, upgrades — is worth it when the time it frees each year exceeds the cost of the work within one to two years.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/technical-debt-cost-calculator.md
- Parameters: `currency`, `developers`, `developer_cost`, `debt_time`, `incidents`, `incident_cost`, `reduction`, `paydown_cost`

### [Website bandwidth & hosting calculator](https://infikeytechnologies.com/tools/bandwidth-hosting-calculator)

Monthly bandwidth = visitors × pages per visit × average page size, plus downloads and API traffic. A CDN serves most images, scripts and styles from cache, so the origin server only transfers the rest. Peak load is average page views per second multiplied by a peak factor, typically 3–5× for sites with daily traffic spikes. Concurrent users ≈ visits per second × average visit length.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/bandwidth-hosting-calculator.md
- Parameters: `visitors`, `pages`, `page_size`, `extra_gb`, `cdn_offload`, `visit_minutes`, `peak_factor`, `currency`, `price_gb`

## Security & compliance

### [Data breach cost calculator](https://infikeytechnologies.com/tools/data-breach-cost-calculator)

A data breach costs roughly the number of records exposed × the cost per record, adjusted for your security controls, plus any regulatory fines. IBM’s 2026 Cost of a Data Breach Report puts the global average breach at USD 4.99 million and stolen customer personal data at USD 192 per record. A tested incident response plan, encryption and security automation reduce the cost; third-party involvement and skills shortages increase it.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/data-breach-cost-calculator.md
- Parameters: `currency`, `records`, `cost_per_record`, `controls`, `risk_factors`, `fine`, `likelihood`

### [Password strength & entropy calculator](https://infikeytechnologies.com/tools/password-strength-calculator)

Password strength is measured in bits of entropy: length × log2(size of the character set) for a random password, or words × log2(wordlist size) for a random passphrase. Each extra bit doubles the guesses needed. A random 12-character password using all four character types has about 79 bits; a 5-word Diceware passphrase about 65 bits. Human-chosen passwords are far weaker than these figures because attackers try common patterns first.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/password-strength-calculator.md
- Parameters: `mode`, `length`, `sets`, `words`, `attack`

### [Security & compliance readiness score](https://infikeytechnologies.com/tools/security-compliance-readiness-score)

Security compliance readiness is how close your controls are to what an auditor or regulator expects. ISO 27001, SOC 2, GDPR and India’s DPDP Act share the same foundations: policies, an inventory of data, risk assessment, access control with MFA, encryption, patching, monitoring, incident response, backups, vendor management, training and privacy rights. Score each area below to see your gaps mapped to the framework you are targeting.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/security-compliance-readiness-score.md
- Parameters: `framework`, `policies`, `assets`, `risk`, `access`, `encryption`, `vulnerabilities`, `monitoring`, `incidents`, `backups`, `vendors`, `training`, `privacy`

## Website performance & design

### [Page speed revenue calculator](https://infikeytechnologies.com/tools/page-speed-revenue-calculator)

A slow website loses sales because conversion rates fall as load time rises. Deloitte found a 0.1-second mobile speed improvement went with 8.4% more retail conversions, and Portent found e-commerce sites loading in 1 second convert 2.5 times better than sites loading in 5 seconds. To estimate your gain, apply a conversion change for each second saved to your current conversion rate, then multiply the extra conversions by your order or lead value.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/page-speed-revenue-calculator.md
- Parameters: `currency`, `visitors`, `conversion`, `value`, `current_time`, `target_time`, `loss_per_second`

### [Colour contrast checker (WCAG)](https://infikeytechnologies.com/tools/color-contrast-checker)

Contrast ratio compares the relative luminance of two colours, from 1:1 (identical) to 21:1 (black on white). WCAG 2.2 level AA requires at least 4.5:1 for normal text and 3:1 for large text (24 px, or 18.66 px bold) and for icons, borders and other UI components. Level AAA requires 7:1 for normal text and 4.5:1 for large text. Enter two hex colours to check them.

- Type: instant calculator
- Plain text: https://infikeytechnologies.com/tools/color-contrast-checker.md
- Parameters: `foreground`, `background`

## Disclaimer

These tools are provided free for general information and planning only. Instant calculators give estimates based on your inputs and stated assumptions, and estimate tools only collect requirements — neither is a quote, offer, or financial, legal, tax, investment or other professional advice. Infikey Technologies Private Limited, Infikey Technologies LLC and their directors, employees and affiliates make no warranty about the accuracy, completeness or suitability of any tool or result, and accept no liability for any loss or damage, direct or indirect, arising from their use or from reliance on their results. Verify all figures independently before making any decision. Use of these tools is at your own risk.