Simple Interest Calculator
Calculate interest on a fixed principal without compounding.
Example result
- Final amount
- 11,500
No additional contributions, compounding, fees or day-count convention are included. Fractional years are allowed.
How to calculate it
No additional contributions, compounding, fees or day-count convention are included. Fractional years are allowed.
Worked example
This is an illustrative scenario, not a market benchmark. Select “Reset to example” to reproduce it in the calculator.
- Principal
- 10,000 currency units
- Annual simple interest rate
- 5 %
- Term
- 3 years
Simple interest: 1,500
Simple Interest FAQ
How is this different from compound interest?
Simple interest uses the original principal throughout. Compound interest also earns interest on prior interest.
What does this calculation leave out?
No additional contributions, compounding, fees or day-count convention are included. Fractional years are allowed.
Are my inputs saved or sent to a server?
Calculations run in your browser. We do not send your inputs or results to our server or analytics. A comparison stays in this tab until it is refreshed. A CSV is saved only when you choose to download it. See our privacy policy for ordinary hosting and optional analytics data.
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