Compound interest
Enter a monthly amount and a rate to see what your savings grow into.
Hover or tap a bar to see that year.
Show the figures for every year
How this is worked out
- How it grows. Each month the balance grows by one twelfth of the yearly rate. Then your monthly amount is added.
- Why the curve bends upward. Growth is worked out on the whole balance, including earlier growth.
- What is left out. Fees and tax. The rate is a steady average; real investments rise and fall from year to year.