Calculators
Compound Interest Calculator
See how savings grow with compound interest — choose the compounding frequency, add regular contributions, and view the year-by-year breakdown.
Good to know
Frequently asked questions
What is compound interest?
It is interest calculated on your original amount plus the interest already earned, so the balance grows faster over time than with simple interest.
Can I include monthly savings?
Yes. Enter a recurring contribution and choose whether you add it every month or every year; contributions are included in the yearly breakdown.
Does it account for tax or inflation?
No. The projection shows gross growth only, so treat it as an estimate before tax, fees and inflation.
Which compounding frequency should I pick?
Use the one your bank or provider states. Monthly is typical for savings accounts, while bonds often compound half-yearly or yearly.