Finance & investing · NUMORA
Compound Interest Calculator
You have a pot of money. You might add some each month, or take some out. What is it roughly worth later?
Open interactive calculatorHow to use
Annual to daily compounding. Deposits and withdrawals can run together, each stepping up with inflation.
Formula
With no inflation: FV = P(1+r/n)^{nt} + PMT × [((1+r/n)^{nt}−1)/(r/n)] × (1+r/n)^{due}. Otherwise period-by-period.
FAQ
Is this Compound Interest calculator accurate?
The formula and assumptions are shown on the page, and the engine is covered by audit tests. Results are for reference — not financial or medical advice.
Do I need an account?
No. Calculations run in your browser. Recents can stay on this device.
What inputs do I need?
Annual to daily compounding. Deposits and withdrawals can run together, each stepping up with inflation.
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