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See how your money grows over time with compound interest and regular contributions.
Compound Interest Calculator
Initial amount—
Total contributions added—
Total interest earned—
Final balance—
How Compounding Works
Each compounding period, interest is calculated on your full balance — including interest already earned. The more frequently interest compounds, the faster your money grows.
Formula: A = P(1 + r/n)nt
Where P = principal, r = annual rate, n = compounding periods/year, t = years.
Illustrative only. This calculator projects growth at a constant rate you specify. Actual investment returns vary and are not guaranteed. This is not investment advice.