14 free calculators · no sign-up

Free financial calculators that show their math

Grow your savings, plan for retirement and budget with confidence. Clear formulas, instant results, and your numbers never leave your device.

100% free
Private by design
Instant results

Investing & Growth calculators

Watch your money grow, protect it from inflation and reach your goals.

Investment Growth calculatorHow your investments could grow over time.Savings Goal calculatorHow much to save each month to hit a goal.Inflation calculatorWhat money will be worth, and what things will cost, later.Gold & Silver Value calculatorWhat your gold, silver or platinum is worth by weight and purity.Cost of Waiting calculatorWhat putting off investing could cost you.

Retirement calculators

Plan your nest egg, early retirement and how long your savings will last.

Retirement calculatorProject your nest egg and retirement income.401(k) calculatorYour 401(k) at retirement, with employer match and IRS limits.FIRE (Early Retirement) calculatorYour FIRE number and when you could retire early.Retirement Income calculatorHow long your savings will last, and how much you can withdraw.

Budget & Planning calculators

Budgets, emergency savings, net worth and buying with cash instead of debt.

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.Emergency Fund calculatorYour cash-cushion target and progress.Save to Buy calculatorHow long to save up and pay cash instead of borrowing.

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

Employer match, IRS limits, inflation, rising prices: 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: markets, prices 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 taxes, investing or retirement, consider talking with a qualified professional.