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Simple Interest Calculator

Simple Interest Cauclator

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Simple Interest Calculator Overview

A simple interest rate calculator is a financial device that helps users calculate the interest rates earned or paid for a large amount during a specific period at a fixed interest rate. It is often used in loans, savings accounts, fixed deposits and short -term investments to determine interest income or obligations.

Formula for Simple Interest:

SI=100/P×R×T​


Where:

  • SI = Simple Interest
  • P = Principal Amount (Initial Investment or Loan Amount)
  • R = Annual Interest Rate (%)
  • T = Time Duration (Years)

Key Uses of the Simple Interest Calculator:

  • Calculation of debt rates: Determines total interest rates to be paid on the loan.
  • Estimates of investment growth: Investors help see how much interest they want to earn.
  • Fixed deposit and savings: Assesses the returns on fixed-income investments.
  • Short -term lending analysis: Helps borrowers understand interest costs on low loans.

Main features of simple interest calculator:

  • Instant interest count - rapid results based on simple interest rate formula.
  •  Available time period - Choose a duration this year, months or days.
  •  Supports different currencies - use for any economic scenario worldwide.
  •  Wrestling of the principal and interest - clearly distinguish interest and total amount.

 Easy input for user-friendly interface-satisfactory calculation.

How It Works

1. Enter Principal Amount (P)

  • Example: ₹50,000


2. Enter Interest Rate (R) Per Year

  • Example: 8% per annum


3. Enter Time Period (T) in Years

  • Example: 5 years


4. Click ‘Calculate’

The tool applies the Simple Interest formula and provides results.

Examples

Example 1: Interest on a Fixed Deposit

Input:

  • Principal: ₹50,000
  • Interest Rate: 8% per year
  • Time: 5 years

Calculation:

SI=100/50,000×8×5​


Result:

  • Simple Interest Earned: ₹20,000
  • Total Amount (Principal + Interest): ₹70,000

Example 2: Interest Payable on a Loan

Input:

  • Loan Amount: ₹1,00,000
  • Interest Rate: 10% per year
  • Duration: 3 years

Calculation:

SI=100/1,00,000×10×3​


Result:

  • Total Interest Payable: ₹30,000


Total Loan Repayment Amount: ₹1,30,000

Reference Tables

Here is a Simple Interest Calculator Reference Table for common investment and loan scenarios:

Simple Interest Calculation Scenarios

Principal Amount

Interest Rate

Time Period

Interest Earned

Total Amount (Principal + Interest)

₹10,000

5% per year

3 years

₹1,500

₹11,500

₹20,000

7% per year

5 years

₹7,000

₹27,000

₹30,000

6% per year

4 years

₹7,200

₹37,200

₹50,000

8% per year

2 years

₹8,000

₹58,000

Simple Interest Components

Factor

Description

Principal Amount

The initial amount invested or borrowed.

Interest Rate

The percentage charged or earned annually.

Time Period

The duration for which interest is calculated.

Interest Earned

The total interest gained over time.

Total Amount

The sum of the principal and interest at the end of the period.

Additional Information

    FAQs 


    1. What is a simple interest calculator and how does it work?

     A simple interest rate calculator is an online tool that helps you calculate the interest rate earned on a large amount for a period specified at a fixed interest rate. By entering the main amount, the annual interest rate and time period, the calculator uses simple interest formulas to acquire or determine the outstanding total interest.

    2. How do I calculate simple interest using a calculator?

     To calculate simple interest rates, enter the time period of the year (p), annual interest rate (s) and in the calculator. Applies to the equipment formula:

     Interest (i) = p × r × t

     This will provide the interest amount earned during the specified period.

    3. What is the difference between simple interest and compound interest?

     Simple interest is calculated only on the original amount, which means that interest is not composed over time. On the other hand, compound interest is calculated on the main amount and leads to any pre -absorbed interest, interest in interest. This fundamental difference resulted in a faster rate compared to compound interest.

    4. Can I use a simple interest -calculator for different time periods, such as months or days?

     Yes, simple interest calculators can accommodate different time periods. For several months, convert time to year by sharing the number of months with 12. For several days, share the number of days with 365. Inputting these values ​​will allow the calculator to calculate the interest accurately for the specified period.

    5. Are the interest rates registered in the calculator on a monthly or annual basis?

     The interest rate should be registered as an annual percentage (Apr). If you have a monthly interest rate, multiply it by 12 to convert it to an annual interest rate before entering the calculator.