Practical everyday tools that save time and reduce errors. Our utility calculators handle common tasks efficiently, from QR code generation to password creation.
Calculate AI API costs for OpenAI GPT-4, Claude, Gemini, and other LLM providers
Calculate web app hosting costs for Next.js, React, and full-stack applications
Calculate true cost of car ownership including depreciation, insurance, maintenance, fuel, and financing
Calculate your carbon footprint from transportation, energy, diet, and lifestyle choices
Calculate total childcare costs from infancy through school age including daycare, preschool, and after-school care
Calculate DeFi staking rewards, yield farming returns, and staking ROI with APY compounding
Compare electric vehicle costs vs gas car including fuel, maintenance, and total ownership costs
Calculate ideal freelance hourly rate based on expenses, taxes, desired income, and billable hours
Calculate the cost of fuel for your trip
Calculate GPU cloud computing costs across major providers including AWS, Azure, Google Cloud, Lambda Labs, and RunPod. Compare pricing for AI training, inference, and GPU workloads.
Calculate savings from home energy efficiency improvements like insulation, windows, and HVAC upgrades. Determine ROI and payback period for energy efficiency investments.
Calculate UK inheritance tax on estates with nil-rate band, residence allowance, and exemptions
Calculate token count and cost for AI prompts across OpenAI, Claude, and other LLM providers
Calculate annual property taxes by US state with effective tax rates and homestead exemptions
Compare renting vs buying a home with comprehensive cost analysis over time
Convert annual salary to hourly rate for UK workers with working hours and tax considerations
Convert annual salary to hourly rate for US workers with working hours and tax considerations
Calculate solar panel ROI, payback period, and lifetime savings from solar energy investment
Calculate UK stamp duty land tax (SDLT) for property purchases with all tax bands and reliefs
Calculate student loan payments, payoff timelines, and compare repayment plans including PSLF
Calculate your UK take-home pay after income tax, National Insurance, and pension contributions
Calculate your US take-home pay after federal tax, state tax, FICA, and other deductions
Test calculator for E2E testing
Convert time between different time zones
Calculate tip amount and total bill with customizable tip percentage and bill splitting.
Calculate potential profits from token launches, ICOs, and early-stage crypto investments
Calculate return on investment for college degree including tuition, earnings, and lifetime value
Calculate the cost of fuel for your trip
Calculate AI API costs for OpenAI GPT-4, Claude, Gemini, and other LLM providers
Calculate web app hosting costs for Next.js, React, and full-stack applications
Convert time between different time zones
Calculate your carbon footprint from transportation, energy, diet, and lifestyle choices
Compare electric vehicle costs vs gas car including fuel, maintenance, and total ownership costs