Compound Interest
Growth with periodic compounding and deposits.
Loading tool
Set principal, rate, years, and how often interest compounds. Add a recurring deposit if you want. Results are estimates.
How to use this tool
- Enter the amounts. Fill in principal, rate, term, or prices. Use the same currency throughout.
- Read the estimate. The figures are a simplified model, not a lender or tax quote.
- Compare a related tool. Open amortization, compound interest, or paycheck if you need another view.
Reality check
Markets, taxes, and fees change outcomes. This page uses a constant rate. It is not a forecast and not advice.
Frequently asked
Is contribution timing start or end of period?
You can pick either. End-of-period is the conservative default.
Can I model inflation?
Use the inflation calculator on the real value, or lower the rate by an inflation guess.
What compounding frequencies exist?
Annual, quarterly, monthly, daily, and continuous.
Does a high compound rate mean I should invest?
No. The page only projects the numbers you typed. It is not investment advice.
Does it pick stocks?
No.