The Interest Calculator helps you calculate simple interest earned or owed. Simply fill in the fields above and click Calculate to get an instant result.
This calculator is part of Calculate Wiki’s Finance Calculators collection.
What You’ll Need
- Principal ($)
- Annual Interest Rate (%)
- Time Period (years)
Formula Used
Simple Interest = Principal × (Rate ÷ 100) × Time
Example Calculation
Using example inputs — Principal = 5000 $; Annual Interest Rate = 5 %; Time Period = 3 years — the Interest Calculator returns:
| Value | Result |
|---|---|
| Simple interest | $750.00 |
| Total (principal + interest) | $5,750.00 |
$750.00 interest. Total with interest: $5,750.00.
Helpful Information
Results from the Interest Calculator are estimates based on standard formulas used in the finance calculators field. For projects with significant cost, health, or safety implications, consider verifying results with a qualified professional.