What is simple interest vs compound interest?
Simple interest is calculated solely on the original principal amount, whereas compound interest also calculates interest on previously accumulated interest.
How to Use Simple Interest Calculator
Step 1: Input Principal
Enter initial principal amount.
Step 2: Rate & Time
Enter annual interest rate (%) and time period in years or months.
Step 3: View Return
Get total interest earned and total balance at maturity.
Key Features & Capabilities
- Instant I = P * r * t calculation
- Supports time entered in days, months, or years
- Clear visual comparison of principal vs interest
Frequently Asked Questions
What is the simple interest formula?
Interest (I) = Principal (P) × Annual Interest Rate (r) × Time in years (t).
Related Tools
- Compound Interest Calculator — Calculate compound investment returns with recurring monthly contributions.
- Savings Goal Calculator — Calculate required monthly savings to reach a target financial goal in a specific timeframe.