Compound Interest Calculator
See how savings or investments grow with compounding and optional monthly contributions.
Loading the tool
This is a projection at a constant rate. Real returns vary and are not guaranteed.
How to use Compound Interest Calculator
- Enter the starting amount, rate and number of years.
- Choose how often interest compounds.
- Add a monthly contribution if you want.
Privacy and limits
This tool runs in your browser. What you type is processed on your device and is not sent to our server.
Questions
- Is Compound Interest Calculator free to use?
- Yes. You do not need an account and there is nothing to pay.
- Does it work offline?
- Once the page has loaded, the tool does its work on your device. Some browsers need a connection only to load the page itself.