Use this simple interest calculator to quickly calculate interest earned or paid on a principal amount. Enter the principal, interest rate, and time period to get instant results.
Simple Interest Calculator
Enter values to calculate interest.
Example Simple Interest Calculations
- $1,000 at 5% for 2 years
- $2,500 at 3.5% for 4 years
- $10,000 at 6% for 1 year
- $750 at 4% for 3 years
Frequently Asked Questions
What is simple interest?
Simple interest is calculated only on the principal amount and does not compound over time.
How is simple interest calculated?
Multiply the principal by the interest rate and time period, then divide by 100.
Is this simple interest calculator free?
Yes. All finance calculators on UnitLogicPro are free to use.