Simple Interest Calculator – Calculate SI, Interest & Total Amount Online
Calculate Simple Interest (SI) quickly with our free online Simple Interest Calculator. Just enter the Principal Amount, Rate of Interest, and Time Period to instantly get the calculated Interest and Total Amount. This tool is ideal for personal finance planning, short-term loans, savings, and quick financial estimates.
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What is Simple Interest?
Simple Interest (SI) is the interest calculated only on the original amount of money, also known as the principal. It remains constant throughout the loan or deposit period, making it easy to understand and ideal for short-term loans, savings, and fixed deposits.
Simple Interest Formula
SI = (P × R × T) / 100
Here:
- P = Principal Amount
- R = Rate of Interest (per year)
- T = Time Period (in years)
Key Benefits
- Instant calculation of Simple Interest and total amount
- Perfect for short-term loans, savings, and fixed deposits
- Supports Indian formats including rupees (₹) and percentage (%)
- Free, accurate, and easy to use for quick financial estimates
Example
Suppose you invest ₹10,000 at an interest rate of 8% per annum for 3 years:
SI = (10,000 × 8 × 3) / 100 = ₹2,400
Total Amount = ₹12,400