Part of the topic: 🐷 Saving, loans & retirement
Compound interest & savings calculator
How much will your savings grow? Enter a starting amount, a monthly deposit, an annual return and the number of years.
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🔒 Runs entirely in your browser – nothing you enter is uploaded or stored.
How to use it
- Enter what you already have and what you add each month.
- Enter an expected annual rate (e.g. a savings account rate).
- The chart shows deposits (light) and interest (dark) per year.
Last checked: October 2026 · Based on: Standard compound-interest formula. Found a mistake? Use the form below – we fix confirmed errors and update the date.
Frequently asked questions
How is compound interest calculated here?
Interest is credited monthly at one twelfth of the annual rate, and deposits are added at the end of each month.
Are taxes included?
No. Depending on your country, taxes on interest or capital gains reduce the result.
Is this investment advice?
No – it is a mathematical illustration. Past or assumed returns do not guarantee future results.