Compound Interest Calculator
Project how a starting balance and monthly deposits could grow with compound interest. See contributions, interest and the value in today’s dollars.
Example estimate
Projected savings balance
$73,900
- In today’s dollars
- $57,731
- Total contributions
- $57,000
- Interest earned
- $16,900
This estimate uses the figures shown. For financial product decisions, consider advice from a licensed financial services provider.
How this estimate works
Interest compounds monthly at the annual rate divided by 12. Deposits are added at month end. Taxes, fees and changing rates can reduce or change growth. The example uses 2.5% inflation to express the future balance in today’s dollars.
Example amounts illustrate the calculation. Replace them with your own figures or quotes.
How is compound interest calculated on savings?
Compound interest is calculated on your balance including interest already added. Each deposit starts earning interest after it is made. The calculator separates your contributions from interest earned so you can see what drives the final balance.