Free Financial Calculators
Loan, mortgage, auto, investment, retirement, and debt calculators — free, accurate, and instant.
Auto Loan Calculator
Estimate your monthly car payment and total interest.
Amortization Calculator
See the monthly payment, total interest, and payoff on any loan.
Mortgage Payoff Calculator
See how extra payments pay off your mortgage sooner.
House Affordability Calculator
Find the home price you can afford on your income.
Down Payment Calculator
Calculate your down payment and loan amount.
Debt-to-Income Ratio Calculator
Calculate your DTI ratio the way lenders do.
Credit Card Payoff Calculator
See how long it takes to clear a card balance.
Debt Payoff Calculator
Estimate when you'll be debt-free and the interest cost.
Interest Calculator
Grow a lump sum with compound interest.
Simple Interest Calculator
Calculate interest with the classic I = Prt formula.
Savings Calculator
Project your savings with regular contributions.
CD Calculator
Calculate a certificate of deposit's value at maturity.
Present Value Calculator
Find what future money is worth today.
Future Value Calculator
Project what money today grows to over time.
Investment Calculator
Project an investment with regular contributions.
401(k) Calculator
Project your 401(k) balance at retirement.
IRA Calculator
Project the growth of your IRA contributions.
Inflation Calculator
See how inflation changes prices and buying power.
VAT Calculator
Add value-added tax to a net amount.
Personal Loan Calculator
Estimate payments on a personal loan.
Student Loan Calculator
Plan your student loan repayment.
Business Loan Calculator
Estimate payments on a business loan.
Home Equity Loan Calculator
Estimate payments on a home equity loan.
HELOC Calculator
Estimate interest-only and repayment HELOC payments.
Repayment Calculator
Work out the monthly repayment on any loan.
Payment Calculator
Calculate the monthly payment on a loan.
Refinance Calculator
See if refinancing your mortgage is worth it.
Debt Consolidation Calculator
See if consolidating debt lowers your payment.
Budget Calculator
Split your income with the 50/30/20 rule.
Commission Calculator
Calculate commission from a sale amount and rate.
Depreciation Calculator
Calculate straight-line depreciation of an asset.
Margin Calculator
Calculate gross margin, markup, and profit.
Rent Calculator
Find how much rent you can comfortably afford.
Annuity Payout Calculator
See the income an annuity balance can pay out.
Annuity Calculator
Grow regular contributions into a future balance.
Roth IRA Calculator
Project tax-free growth in a Roth IRA.
Lease Calculator
Estimate a monthly lease payment.
Auto Lease Calculator
Estimate a monthly car lease payment.
College Cost Calculator
Project the future cost of college.
Average Return Calculator
Find an investment's annualized return (CAGR).
Payback Period Calculator
See how long an investment takes to pay for itself.
Rental Property Calculator
Estimate cap rate and cash flow on a rental.
Bond Calculator
Calculate a bond's price from its yield.
Mutual Fund Calculator
Project mutual fund growth net of fees.
RMD Calculator
Find your required minimum distribution.
Income Tax Calculator
Estimate your federal income tax by bracket.
Take-Home Paycheck Calculator
See your net pay after taxes and deductions.
FHA Loan Calculator
Estimate an FHA mortgage payment with insurance.
VA Mortgage Calculator
Estimate a VA loan payment with the funding fee.
Pension Calculator
Estimate a defined-benefit pension.
Estate Tax Calculator
Estimate federal estate tax above the exemption.
Cash Back or Low Interest Calculator
Compare a cash rebate against a low-APR offer.
Interest Rate Calculator
Work out the interest rate on a loan.
APR Calculator
Find the true APR including fees.
IRR Calculator
Find the internal rate of return.
Retirement Calculator
Project your retirement savings and income.
Social Security Calculator
Estimate your Social Security benefit.
Credit Card Calculator
See your card payoff time and interest.
Boat Loan Calculator
Estimate payments on a boat loan.
Real Estate Calculator
Analyze a rental property's returns.
Rent vs Buy Calculator
Compare the monthly cost of renting and buying.
Marriage Tax Calculator
See if marriage raises or lowers your taxes.
Finance Calculator (TVM)
Solve any time-value-of-money variable.
Canadian Mortgage Calculator
Monthly payments with Canadian compounding.
UK Mortgage Calculator
Estimate monthly repayments in pounds.
About these financial calculators
A complete set of free financial calculators for the money decisions that matter — mortgage payoff and amortization, auto and personal loans, credit-card and debt payoff, savings, CDs, compound interest, present and future value, investment growth, 401(k) and IRA retirement projections, house affordability, debt-to-income, inflation, and VAT. Each one uses the standard financial formula, updates instantly as you type, and needs no sign-up — a fast, private alternative to the big finance-calculator sites.
Frequently asked questions
Are these financial calculators free?
Yes — every calculator is free, runs in your browser, and needs no account. Nothing you enter is uploaded or saved.
How accurate are the results?
Each uses the standard published formula (loan amortization, compound interest, present/future value, and so on) and shows the method, so results match a bank or spreadsheet.
Which calculator should I use to buy a home?
Start with House Affordability to set a budget, Down Payment to plan cash, then the Mortgage and Amortization calculators for the payment and interest.