Simple Interest Calculator : Calculate Interest & Maturity Value
Calculate simple interest on fixed-term deposits, short-term bonds, or basic personal loans using the foundational linear interest formula.
Interactive Calculator
100% Client-Side EngineTotal Accrued Interest (I = Prt)
+$1,500
Initial Principal
$10,000
Total Maturity Balance (A = P + I)
$11,500
Step-by-Step Examples
$10,000 Investment for 3 Years at 5%
Fixed-term deposit with simple interest.
Inputs: Principal: $10,000, Rate: 5%, Time: 3 Years
Result: Interest Earned: $1,500.00, Total Maturity: $11,500.00
$10,000 * 0.05 * 3 = $1,500 interest.
How to Use This Tool
- Enter initial principal amount.
- Enter annual interest rate percentage.
- Specify time duration in years.
- Click Calculate to see interest generated and total final maturity balance.
Frequently Asked Questions
Simple interest is calculated solely on the original principal amount. Compound interest is calculated on both the principal and previous accumulated interest.
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