Finance Tools

Free finance calculators for everyday money math — compound and daily interest, loan amortization, CAGR, inflation, break-even points, cost per wear, and splitting a bill fairly. They run in your browser, so nothing is uploaded, and there is no account or sign-up.

9 tools available

Break-Even Calculator

Fixed & variable costs + price → break-even point + chart

CAGR Calculator

Start & end value → annualized return (CAGR)

Amortization Calculator

Loan amount, rate, term → payment + full schedule

Cost Per Wear Calculator

Price ÷ wears → true cost per wear + comparison

Compound Interest Calculator

Balance, contributions & rate → future value + chart

Daily Interest Calculator

Balance & APR → daily, monthly, yearly interest

Inflation Calculator

Amount, years, rate → future cost or buying power

Fair Bill Splitter

Split a bill by item, tax and tip shared fairly

Real Return Calculator

Inflation-adjusted rate of return from nominal return

Every tool runs in your browser — no upload, no account, free.