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Simple Interest Calculator

Easily calculate simple interest on any loan or investment using this Simple Interest Calculator. Enter principal, interest rate, and time period to get accurate results.

Principal amount ₹1000
Total interest ₹500
Total amount ₹1500

What is Simple Interest?

Simple Interest (SI) is the easiest way to calculate interest on a principal amount. Unlike compound interest, where interest is added to the principal periodically, simple interest is calculated only on the original principal amount throughout the entire duration.

Simple Interest Formula – How to Calculate SI

To calculate Simple Interest, the following formula is used:

SI = (P × R × T) / 100

Where:

  • SI = Simple Interest
  • P = Principal amount (the original sum invested or borrowed)
  • R = Annual rate of interest (%)
  • T = Time period in years

Total Amount Calculation Using Simple Interest

The total amount to be repaid or received at the end of the term is:

Total Amount = Principal + Simple Interest

How This Simple Interest Calculator Works

This calculator takes the principal amount, interest rate, and time period to compute:

  • Simple Interest earned or payable
  • Total amount after interest

Benefits of Using an Online Simple Interest Calculator

  • Quick Estimations: Instantly find out how much interest you'll earn or owe.
  • Transparent Calculations: No compounding involved, making the math straightforward.
  • Great for Short-Term Loans or Deposits: Often used for car loans, personal loans, or fixed deposits with short tenures.

Example: Simple Interest Calculation Scenario

Principal Rate of Interest Time Period Simple Interest Total Amount
₹1,00,000 5% 3 Years ₹15,000 ₹1,15,000

Use this calculator to easily assess returns or costs for loans, deposits, or investments where simple interest applies.

Explore more calculators: Compound Interest Calculator, Fixed Deposit Calculator, SIP Calculator