Bū tools
Savings
What your savings become with compound interest.
What it does
What your savings become: a starting amount, a deposit every month, a yearly rate and a duration.
- Compound interest: the interest earns interest. Each month the balance grows by the rate ÷ 12, then the deposit is added.
- The chart shows, year by year, what you paid in (blue) and what the interest added (orange).
- Rule of 72: 72 ÷ the rate gives about the years for money to double.
- Not counted: taxes, fees and inflation. A rate is rarely fixed for years: the result is a guide, not a promise.
Free, no account, nothing is sent: it runs in your browser, even offline.
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