Money & shopping
Simple interest calculator
Estimate interest without compounding or additional payments.
A clear answer. Here’s how.
Simple interest = principal × annual rate × years. Adds this interest to the original principal. Assumes a constant simple rate and no compounding, contributions, withdrawals, fees or tax. Use a consistent currency throughout.
See a worked example
Worked example
A fixed demonstration, separate from the values you enter above.
- Principal
- 1000
- Annual simple interest (%)
- 5
- Years
- 3
Example result
- Interest
- 150.00
- Principal plus interest
- 1,150.00