Simple Interest Calculator
Calculate the interest in a simple way by defining specific principal, interest rate, and period.
$
% per year
Result:
$
$
How to calculate Simple Interest?
- Fill in the Principal Amount field.
- Fill in the Interest Rate field (% per year).
- Specify the period.
- Click "Calculate".
After completing these steps, see your calculated Interest Amount and Total Amount in the Result section.
Simple Interest Formula
Interest amount = PA * IR / 100 * y
Where:
- PA = Principal amount
- IR = Interest Rate % per year
- y = Period in years
Examples
| Principal amount | Interest rate | Period | Interest amount | Total amount |
|---|---|---|---|---|
| $1000 | 5% per year | 10 years | $500 | $1500 |
| $5000 | 10% per year | 3 months | $125 | $5125 |
| $50000 | 3% per year | 15 years | $22500 | $72500 |