21 free calculators · no sign-up

Free financial calculators that show their math

Plan a mortgage, pay off debt, grow your savings and budget with confidence. Clear formulas, instant results, and your numbers never leave your device.

100% free
Private by design
Instant results

Home & Mortgage calculators

Payments, affordability and the real cost of owning a home.

Mortgage calculatorMonthly payment with taxes, insurance, HOA and PMI.Home Affordability calculatorHow much house your income and debts can support.Refinance calculatorNew payment, monthly savings and break-even point.Mortgage Payoff calculatorHow extra payments cut years and interest off your loan.Amortization Schedule calculatorFull payment-by-payment schedule for any loan.Rent vs. Buy calculatorIs buying or renting the better deal for you?

Loans & Debt calculators

Loan payments, payoff plans and what interest really costs.

Loan Payment calculatorMonthly payment, total interest and payoff time for any loan.Auto Loan calculatorCar payment with trade-in, sales tax and fees.Debt Payoff calculatorAvalanche vs. snowball, month by month.Credit Card Payoff calculatorHow long to pay off a card, and how to go faster.

Saving & Investing calculators

Watch money grow and plan how to reach your goals.

Compound Interest calculatorHow savings and investments grow over time.Retirement calculatorProject your nest egg and retirement income.401(k) calculatorYour 401(k) at retirement, with employer match and IRS limits.Savings Goal calculatorHow much to save each month to hit a goal.CD calculatorInterest a certificate of deposit earns by maturity.Inflation calculatorWhat money will be worth, and what things will cost, later.

Budget & Income calculators

Budgets, net worth and what your paycheck is really worth.

50/30/20 Budget calculatorSplit take-home pay into needs, wants and savings.Net Worth calculatorAdd up what you own and owe for a snapshot.Salary to Hourly calculatorConvert salary to hourly, weekly and monthly pay.

Safety Net calculators

Emergency savings and life insurance coverage.

Emergency Fund calculatorYour cash-cushion target and progress.Life Insurance calculatorEstimate how much coverage your family needs.

Why people use CalcMyFin

Transparent formulas

Every calculator explains exactly how the numbers are worked out, with a worked example, so you can trust and check the result.

Private by design

No accounts, no forms, no data collection. All math runs in your browser and nothing you type is sent anywhere.

Built for real decisions

Taxes, insurance, PMI, employer match, inflation: the details that change the real answer are included, not ignored.

Common questions

Are these calculators free?

Yes. Every calculator on CalcMyFin is free to use with no sign-up, no email and no limits.

Is my information private?

Your numbers never leave your device. All calculations run in your browser, and we don't collect or store the values you enter.

How accurate are the results?

Each calculator uses standard, published formulas, and we show the math on every page. Results are educational estimates: lenders, insurers and tax rules can change the real numbers.

Is this financial advice?

No. CalcMyFin provides educational tools to help you explore scenarios. For decisions about insurance, taxes, investing or major debts, consider talking with a qualified professional.