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Finance Calculators

Explore our free finance calculators to make smarter decisions.

Amortization Calculator

Calculate your loan amortization schedule with extra payments. See how much interest you can save and pay off your loan faster with our free online tool.

Full amortization schedule with monthly breakdownRecurring extra payments (monthly, quarterly, yearly)One-time extra payment option

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Loan Calculator

Calculate monthly loan payments, total interest, and repayment schedule with extra payments and balloon payment support.

Monthly payment calculation with KaTeX formulaExtra payments (monthly, quarterly, half-yearly, yearly)One-time extra payment option

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Mortgage Calculator

Calculate your monthly mortgage payment including principal, interest, property taxes, insurance, PMI, and HOA fees. View amortization schedule and see how extra payments can save you money.

Monthly P&I with property tax, insurance, PMI, HOA, and other costsDown payment percentage displayAmortization schedule by year

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Interest Rate Calculator

Calculate the interest rate on your loans, mortgages, savings, or investments using our advanced calculator.

Loan interest rate calculationSavings/Investment rate calculationNominal vs effective rate comparison

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APY Calculator

Calculate Annual Percentage Yield (APY) from APR, or calculate APY from principal and interest earned. Compare compounding frequencies.

APR to APY conversionInterest earned to APY calculationComparison across compounding frequencies

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Sales Tax Calculator

Calculate sales tax and total price instantly. Enter your item price and select a state or enter a custom tax rate to see the tax amount and final price with our free online calculator.

Instant sales tax calculationAll 50 US states tax rates includedCustom tax rate input option

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Inflation Calculator

Calculate the impact of inflation on the purchasing power of your money. Compare dollar values between any years from 1913 to 2026 using historical U.S. CPI data, or project future costs with custom inflation rates.

Historical CPI-based calculations from 1913 to 2026Forward flat rate inflation projectionsBackward flat rate purchasing power calculations