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Finance

Finance calculators

Mortgages, loans, investments, taxes, and everyday money math.
18 calculators·Updated daily·All formulas visible
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Most searchedThe single biggest financial decision most people make.

Mortgage Calculator

Monthly payment, total interest, and amortization for a fixed-rate mortgage — principal and interest only, with an extra-payment field to test payoff.

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Common pairings
Buying a first home
MortgageRent vs buyRefinance
Paying down debt
Credit card payoffLoanAuto loan
Building wealth
Compound InterestRetirementSavings goal
Showing all 18 finance calculators

Loans

6 calculators
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Mortgage
Monthly payment, total interest, and amortization for a fixed-rate m…
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Loan
Monthly payment and total interest for any fixed-rate loan from thre…
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Auto loan
Monthly car payment from the amount financed — vehicle price with sa…
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Student loan
Estimate the monthly payment, total interest, and payoff time on a s…
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Credit card payoff
How long a fixed monthly payment takes to clear a balance — credit c…
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Refinance
Lifetime savings from refinancing a mortgage — monthly payment diffe…

Investments

5 calculators
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Compound Interest
Future value of an investment with regular monthly contributions — c…
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Inflation
What money will cost — or used to be worth — at a given inflation ra…
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Simple interest
Interest accrued without compounding — I = P·r·t, so the math is lin…
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Savings goal
How much you need to save monthly to hit a target — a future-value p…
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ROI
Return on investment as a total percentage and annualized as CAGR — …

Retirement

1 calculators
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Retirement
Projected nest egg at retirement age from your current savings, mont…

Taxes

2 calculators
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Paycheck
Gross-to-net paycheck estimate for a single filer — 2024 federal bra…
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Income tax
Estimated US federal income tax from the 2024 brackets and standard …

Real estate

1 calculators
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Rent vs buy
Compare the cost of renting vs buying a home over your time horizon …

Everyday

3 calculators
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Tip
Calculate the tip on any bill and split the total per person — set a…
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Sales tax
Add sales tax to a pre-tax price to get the out-the-door total — the…
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Discount
Final price after a percent-off discount, plus exactly what you save…