Finance Calculators
Loan calculators, SaaS metrics, ROI estimators, and financial planning tools
Loan Amortization Calculator
Calculate monthly payments and amortization schedules
SaaS MRR & Growth Calculator
Calculate MRR, ARR, churn rate, and LTV
Compound Interest Calculator
Calculate compound interest and investment growth
Percentage Calculator
Calculate percentages, percentage change, and tips
Date Calculator
Calculate days between dates, add/subtract dates, and more
Crypto Profit & Loss Calculator
Calculate cryptocurrency gains, losses, and ROI
Income Tax Calculator
Estimate federal and state income taxes
Platform Fee Calculator
Work out what you actually keep after platform and payment fees
Freelance Hourly Rate Calculator
Work out the hourly rate that actually pays your salary
Popular specialised versions
Preset versions of the tools above, ready for one specific job. Each card lists the ones people reach for most; the tool page has the full set.
Loan Amortization Calculator
- Mortgage Amortization Schedule
- Auto Loan Payment Calculator
- ARM Loan Calculator
- Balloon Loan Calculator
- Boat Loan Calculator
- Bridge Loan Calculator
- Business Loan Calculator
- Car Affordability Calculator
- Car Lease Calculator
- Construction Loan Calculator
- Credit Card Payoff Calculator
- Debt Consolidation Loan Calculator
- Debt Payoff Calculator
SaaS MRR & Growth Calculator
- Customer Churn Rate Calculator
- Customer Lifetime Value (LTV) Calculator
- CAC Calculator
- LTV:CAC Ratio Calculator
- ARR Calculator
- Expansion Revenue Calculator
- CAC Payback Calculator
- SaaS Quick Ratio Calculator
- Burn Rate Calculator
- ARPU Calculator
- SaaS Magic Number Calculator
- Rule of 40 Calculator
- Monthly Growth Rate Calculator
Compound Interest Calculator
- Roth IRA Calculator
- 401k Growth Calculator
- Savings Goal Calculator
- 4% Rule Calculator
- 529 Plan Calculator
- Annual Interest Calculator
- Annuity Calculator
- APY Calculator
- Barista FIRE Calculator
- Car Savings Calculator
- CD Calculator
- Coast FIRE Calculator
- College Savings Calculator
Percentage Calculator
- Tip Calculator
- Discount Calculator
- Percentage Change Calculator
- Budget Calculator
- Currency Converter
- Percentage Increase Calculator
- Margin Calculator
- Sales Tax Calculator
- GPA Calculator
- Body Fat Calculator
- BAC Calculator
- Download Progress Calculator
- ROI Percentage Calculator
Date Calculator
- Age Calculator
- Days Until Christmas Calculator
- Days Between Dates Calculator
- Business Days Calculator
- Add 30 Days to Date Calculator
- Days Until New Year Calculator
- Days Until Birthday Calculator
- Retirement Countdown Calculator
- Event Countdown Calculator
- Days Since Event Calculator
- Employment Tenure Calculator
- Add Weeks to Date Calculator
- Add Days to Date Calculator
Crypto Profit & Loss Calculator
- Ethereum Profit Calculator
- Solana Profit Calculator
- Dogecoin Profit Calculator
- XRP Profit Calculator
- Cardano Profit Calculator
- Polygon Profit Calculator
- Avalanche Profit Calculator
- Crypto Mining Calculator
- Crypto DCA Calculator
- Crypto Tax Calculator
- Staking Rewards Calculator
- DeFi Yield Calculator
- NFT Profit Calculator
Income Tax Calculator
- Paycheck Tax Calculator
- Self Employment Tax Calculator
- 1099 Tax Calculator
- AMT Calculator
- Bonus Tax Calculator
- Capital Gains Tax Calculator
- Capital Loss Calculator
- Dividend Tax Calculator
- Effective Tax Rate Calculator
- Estate Tax Calculator
- Quarterly Tax Calculator
- Federal Income Tax Calculator
- FICA Tax Calculator
Platform Fee Calculator
- Stripe Fee Calculator
- PayPal Fee Calculator
- Etsy Fee Calculator
- eBay Fee Calculator
- Amazon FBA Fee Calculator
- eBay Profit Calculator
- Fiverr Fee Calculator
- Gumroad Fee Calculator
- Patreon Fee Calculator
- Shopify Fee Calculator
- Square Fee Calculator
- Upwork Fee Calculator
- Kickstarter Fee Calculator
Freelance Hourly Rate Calculator
About Finance Calculators
Financial calculators that give you answers in seconds. Calculate loan payments, project compound interest, estimate taxes, and analyze business metrics. All calculations happen instantly in your browser—no waiting, no signup required. Make informed decisions faster.
All tools run locally in your browser. Your data never leaves your device.