Free financial calculators that actually keep up with you
Live results as you type, real charts, side-by-side scenarios, and a link you can share that remembers every number. No signup, and nothing you enter ever leaves your browser.
Loan Calculator
Payments, total interest, and a full amortization schedule.
Open calculator →Compound Interest Calculator
See what steady contributions grow into over time.
Open calculator →Savings Goal Planner
Find your finish date — and what a deadline demands.
Open calculator →Debt Payoff Calculator
Snowball vs. avalanche, side by side in real dollars.
Open calculator →Rent vs. Buy Calculator
A fair net-worth comparison — including the money a renter invests.
Open calculator →Retirement Calculator
Project your nest egg — and the income it could provide.
Open calculator →Auto Loan Calculator
Monthly car payment, total interest, and the true financed amount.
Open calculator →Refinance Calculator
Monthly savings and the break-even month on a refinance.
Open calculator →Net Worth Calculator
Add up assets and liabilities to see where you truly stand.
Open calculator →Debt-to-Income Calculator
Your DTI ratio — the number lenders check first.
Open calculator →Instant, no button
Every number recalculates on keystroke and slider drag. No "Calculate" button, no page reloads.
Shareable permalinks
Your inputs live in the URL. Copy the link and the exact calculation travels with it.
Genuinely private
All math runs locally in your browser. Your balances are never sent to a server.