IFINANCE
Simple Interest Calculator
Calculate simple interest and total amount from principal, rate and time.
Enter your values
Your inputs stay in this browser.ⓘ
Privacy-friendly: your inputs are processed locally in your browser.
Formula
Simple interest = principal × rate × time.
Simple interest = principal × rate × time.
How it works
1
Enter the principal.
2
Enter the annual rate and time.
3
Review the interest and total amount.
Important notes
This tool uses simple interest; it does not compound interest.