Utility Calculators

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 UK annual salary to hourly rate for 2025/26. Calculate gross and net hourly pay with HMRC tax, NI, and holiday 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 2025. First-time buyer relief, additional property surcharge & all current rates. HMRC-compliant.

Calculate student loan payments, payoff timelines, and compare repayment plans including PSLF

Calculate your UK net salary after income tax, National Insurance, pension & student loans. Updated for 2025/26 HMRC tax rates.

Calculate your US take-home pay after federal tax, state tax, FICA, and other deductions

Convert time between any time zones worldwide. EST to GMT, PST to IST, and more. Free, instant results with common conversion reference.

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