Compound Interest Calculator
See how an initial deposit plus monthly contributions grows over time. Choose the compounding frequency and contribution timing, and read the year-by-year table where compounding visibly takes over.
The Growth Story, Year by Year
The result breaks down into total deposited, total interest earned, and the interest share of the final balance — with a per-year table showing balances and interest accelerating as the base grows.
Honest About Assumptions
The calculator is currency-neutral and rate-agnostic: it computes exactly what a constant rate produces, and leaves what rate is realistic to you. Returns in real investments vary and are not guaranteed.