Compound Interest Calculator
Enter a starting amount, a monthly deposit, an annual return and a number of years. The calculator compounds monthly and shows how much you deposited and how much came from interest.
How to use it
- Enter your starting amount and monthly deposit.
- Enter the expected annual return and the number of years.
- Read the total deposited, the interest earned and the final balance.
Frequently asked questions
How often does it compound?
Monthly. The yearly return is divided by 12 and applied each month.
Is the return guaranteed?
No. Real returns vary and can be negative. Use the result as an illustration, not a forecast.
Does it include tax or inflation?
No. Taxes, fees and inflation are not included.
This is an estimate for general information, not tax, legal or financial advice.