Compoundly - Interest

Compoundly is a compound interest calculator that stays out of your way. Two tools, both built around one idea: small amounts, left alone, become large ones. COMPOUNDING INTEREST See what an investment grows into. Set a starting amount, add to it monthly or yearly — or draw it down instead — and watch the curve. Compoundly shows you the total value, what you put in, and what the growth itself contributed. REVERSE COMPOUNDING Start from the goal instead. Tell Compoundly what you want and when, and it works backwards to whatever you're missing: • How much to add each month or year • What annual return you'd need to get there • Or, if you'd rather invest once, the single amount to put in today CHART AND TABLE Every projection comes with a growth chart that separates your contributions from the interest they earned, so you can see the moment compounding takes over. Drag across it to read any point. Switch to the table for a period-by-period breakdown, year by year or month by month, labelled with real calendar dates. BUILT TO BE HONEST • Contributions are made at the end of each period, and the app says so • Monthly plans compound monthly; annual rates compound annually • Withdrawals never overdraw — if the money runs out, Compoundly tells you the year • A 0% return is handled properly, not treated as an error QUIET BY DESIGN No account. No sign-in. No ads. No analytics, no tracking, no third-party code. Compoundly has no networking at all — it works entirely offline, and the numbers you type never leave your device. Compoundly is a calculator, not financial advice. Projections assume a constant rate of return; real returns vary year to year.