Finance Calculators

9 free calculators in this subject.

Money math — mortgages, loans, investments, tax take-home, retirement. Every calculator here cites the primary source (CFPB, Freddie Mac, IRS) and is reviewed by a finance editor before publish.

Auto Loan

Car Loan Calculator

Estimate your monthly auto-loan payment and total interest

Savings

Compound Interest Calculator

Watch your money grow

Savings Goal Calculator

Work out what you need to save each month to hit a target

Credit Card

Credit Card Payoff Calculator

See how long it takes to pay off your card and how much interest you'll save

Tax

Federal Income Tax (2024)

Estimate your federal tax bill

Sales Tax Calculator

Add a sales tax rate to any purchase price

Loans

Loan Calculator

Estimate loan repayments

Mortgage

Mortgage Calculator

See your monthly mortgage payment, total interest, and full amortization schedule for any loan amount, rate, and term. Updated against this week's average rates from Freddie Mac.

Retirement

Retirement Savings Calculator

Project your nest egg and the income it can sustain in retirement

About finance calculators

Finance is the highest-stakes category we publish, which is why every calculator carries a reviewer byline and why we list every assumption the engine makes. A mortgage calculator that doesn't tell you it excludes taxes and insurance is dangerous. A tax calculator that doesn't show which bracket schedule it used is useless. We do both. Across all finance tools we default to transparent formulas, annualized figures, and conservative rounding — you can always export the full amortization or bracket breakdown for a specific calculation.

Frequently asked questions

How recent are the tax brackets / interest rates?

Reference data (tax brackets, Freddie Mac weekly rates) carries a version stamp visible on each calculator. We refresh when the authoritative source publishes — typically weekly for rates, annually for brackets.

Can I use these for tax filing?

These are estimation tools — accurate enough for planning, not a substitute for tax software or an accountant when filing. We say this explicitly on each YMYL calculator.

Do you account for state taxes?

Where the calculator's scope includes state-level math (income tax, sales tax), yes. General-purpose calculators (mortgage, compound interest) are state-agnostic and call that out in the disclaimer.