Principal Amount
Rate of Interest (P.A)
Time Period
A Simple Interest Calculator is an online financial tool that helps individuals calculate the total interest earned on an investment or paid on a loan based on the principal amount, interest rate, and time period. It provides a quick and accurate estimate, making financial planning easier.
The simple interest loan calculator works on the basic simple interest formula:
SI = (P × R × T) ÷ 100
Where:
The total amount is calculated as:
Total Amount = P + SI
Using a simple interest rate calculator helps in:
If you invest ₹1,00,000 at an annual interest rate of 6% for 5 years:
SI = (1,00,000 × 6 × 5) ÷ 100 = ₹30,000
Total Amount = ₹1,00,000 + ₹30,000 = ₹1,30,000
Feature |
Simple Interest |
Compound Interest |
Interest Calculation |
Calculated only on the principal amount |
Calculated on both principal and accumulated interest |
Formula |
SI = (P × R × T) ÷ 100 |
A = P (1 + r/n)^(nt) |
Interest Growth |
Remains constant over time |
Grows exponentially over time |
Common Usage |
Short-term loans, fixed deposits |
Long-term investments, savings accounts |
A Simple Interest Calculator is a valuable tool for individuals and businesses to estimate their financial commitments or returns on investments accurately. Whether you're planning a loan repayment schedule or assessing investment opportunities, using a simple interest calculator ensures informed and strategic financial decisions.