Fixed Deposit is an effective way to earn attractive returns on money that is currently not is use. Investment in fixed deposit makes your idle funds work for you as the invested amount procure heavy interest and adds on to the initial amount. This is the reason that makes it the most credible form of investment. It encourages one to save for the future. Fixed deposits are one of the most reliable modes of investments that provide the assurance of fixed returns at an attractive rate of interest. Returns on these deposits can be calculated by using the fixed deposit calculator.

About Fixed Deposit Calculator

Fixed Deposit Calculator is a digital tool designed to assist the people in calculating the maturity value of the fixed deposit. It eases the calculation and let the user know the amount of interest accrued on the principal amount. It can even be used to compare the amount of interest receivable on different amounts at different tenures. It helps the user to select the best plan that can yield more interest within the suitable time duration. The calculator provides accurate result spontaneously. It saves the efforts and time of the user by simplifying the calculation.

Know How A Fixed Deposit Calculator Works

It is very easy to use a fixed deposit calculator. The user just has to place the required values such as the amount of deposit, tenure and the rate of interest in the relevant fields and select the type of interest ( simple or compound) and interest payout frequency. Once these values are fed in the calculator, the result is automatically computed using the interest formula.

FD Interest Calculator Formula :

The interest on the fixed deposit is calculated using the interest calculator formula mentioned below :
A = P (1 + r/n) nt
I = A - P
Where, A = the maturity value of the investment including interest
P = the principal investment amount (the initial deposit amount)
r = the annual interest rate
n = the number of times that interest is compounded per year
t = the number of years the money is invested for
I = the amount of interest earned

Illustration :

For Example – A depositor wants to know the maturity value of the fixed deposit booked with ₹ 50,000 for the period of 10 years. He enters the relevant details in the calculator and selects the monthly interest compounding frequency. The computed maturity value of the deposit is Rs. 1,00,484. Out of which Rs. 50,484 is the amount of interest accrued.

Fixed Deposit Calculator
Investment Amount (in ₹) - 50,000 Tenure - 10 years
Rate of Interest (%) - 7 Interest Compounding Frequency - Monthly
Maturity Amount (in ₹) - 1,00,484 Total Interest Earned (in ₹) - 50,484
Table Showing Interest Earned And Closing Balance
Year Interest Rate (in % p.a.) Opening Balance (in ₹) Interest Earned (in ₹) Closing Balance (in ₹)
1 7 50,000 3,615 53,615
2 7 53,615 3,876 57,491
3 7 57,491 4,156 61,647
4 7 61,647 4,456 66,103
5 7 66,103 4,779 70,882
6 7 70,882 5,124 76,006
7 7 76,006 5,494 81,500
8 7 81,500 5,892 87,392
9 7 87,392 6,318 93,710
10 7 93,710 6,774 1,00,484

Methods of Interest Calculation

The interest on fixed deposit is calculated using two methods. One is simple interest method where the interest is calculated on the initial amount and the other is compound interest method. In compound interest method, the interest is paid on both the principal amount and the interest earned in the previous interval.

Simple Interest - Simple Interest is the interest which is paid as a percentage of the principal, for the whole investment period. It is the easiest and the fastest method to calculate the interest on the deposited amount. The interest amount calculated using simple interest remains the same throughout the tenure of deposit.

Compound Interest - Compound Interest is the interest which is computed as a percentage of revised principal, i.e. original principal plus accumulated interest of prior periods. In this method the interest earned in the previous years is added to the initial principal, thus increasing the principal amount, on which the interest for the next period is calculated. In this method, the interest is received on the principal as well as the interest accrued during the term of deposit.

Difference Between Simple Interest and Compound Interest

Basis Simple Interest Compound Interest
Meaning Interest that is calculated on the principal amount is called as simple interest Interest that is calculated on principal and the accrued interest is called as compound interest
Principal The principal amount remains constant throughout the tenure of deposit The principal amount keeps on changing throughout the tenure of deposit
Growth in interest The interest yield is same for the entire period The interest grows gradually during the tenure.
Returns Low in comparision to compound interest Higher than the simple interest
Formula A = P (1 + rt) A = P (1 + r/n) nt

To know the value of interest earned on fixed deposit using either method of interest calculation use the specific interest calculator.

Simple Interest Fixed Deposit Calculator

Simple interest fixed deposit calculator is the calculator that uses the simple interest formula to calculate the maturity value and the interest amount. The following formula is used to calculate the amount of interest:

Simple Interest Formula:

A = P (1 + rt)
Where:

  • A = Total Accrued Amount (principal + interest)
  • P = Principal Amount
  • I = Interest Amount
  • r = Rate of Interest per year in decimal; r = R/100
  • R = Rate of Interest per year as a percent; R = r x 100
  • t = Time Period involved in months or years

Calculation of Interest Using Simple Interest Fixed Deposit Calculator

To calculate the interest on the fixed deposit at simple interest use the simple interest fixed deposit calculator. Just put the values in the relevant fields to get the desired result.
Information to be fed in the Simple Interest Fixed Deposit Calculator

  • Investment Amount
  • Period of Investment
  • Rate of Interest

Let's see an example to understand the working of simple interest fixed deposit calculator -

Example : An investor books the fixed deposit of ₹ 10,000 for the period of 10 years at the interest rate of 7% p.a. At the end of the tenure, his deposit amount will increase by ₹ 7,000.

Simple Interest Fixed Deposit Calculator
Investment Amount (in ₹) - 10,000 Tenure - 10 years
Rate of Interest (%) - 7
Maturity Amount (in ₹) - 17,000 Total Interest Earned (in ₹) - 7,000
Table Showing Interest Earned And Closing Balance
Year Interest Rate (in % p.a.) Opening Balance (in ₹) Interest Earned (in ₹) Closing Balance (in ₹)
1 7 10,000 700 10,700
2 7 10,700 700 11,400
3 7 11,400 700 12,100
4 7 12,100 700 12,800
5 7 12,800 700 13,500
6 7 13,500 700 14,200
7 7 14,200 700 14,900
8 7 14,900 700 15,600
9 7 15,600 700 16,300
10 7 16,300 700 17,000

Compound Interest Fixed Deposit Calculator

The compound interest fixed deposit calculator is deviced to calculate the maturity value and the interest accrued on the fixed deposit using the compound interest formula. The compound interest formula is mentioned below :

Compound Interest Formula :

A = P (1 + r/n) nt
Where,
A = the maturity value of the investment including interest
P = the principal investment amount (the initial deposit amount)
r = the annual interest rate
n = the number of times that interest is compounded per year
t = the number of years the money is invested for

Calculation of Interest Using Compound Interest FD Calculator

To calculate the interest on fixed deposit at the compounded interest rate use the compound interest calculator. The following details are to be entered in the calculator to get the result :

  • Investment Amount
  • Tenure
  • Interest Rate
  • Interest Compounding Frequency

Let's try out with an help of example -

Example : A person invests an amount of ₹ 10,000 in the fixed deposit for the period of 10 years. The interest on deposit is compounded monthly. To know the maturity value he enters the relevant information in the FD calculator. The computed maturity value of the deposit is ₹ 20,096 .

Fixed Deposit Calculator
Investment Amount (in ₹) - 10,000 Tenure - 10 years
Rate of Interest (%) - 7 Interest Compounding Frequency – Monthly
Maturity Amount (in ₹) - 20,096 Total Interest Earned (in ₹) - 10,096
Year Interest Rate (in % p.a.) Opening Balance (in ₹) Interest Earned (in ₹) Closing Balance (in ₹)
1 7 10,000 723 10,723
2 7 10,723 775 11,498
3 7 11,498 831 12,329
4 7 12,329 891 13,220
5 7 13,220 956 14,176
6 7 14,176 1,025 15,201
7 7 15,201 1,099 16,300
8 7 16,300 700 17,478
9 7 17,478 1,263 18,741
10 7 18,741 700 20,096

Benefits Of Fixed Deposit Calculator

  • Reduces the manual efforts
  • Provides accurate result
  • Fast calculation
  • Time saving

The maturity value of fixed deposits offered by various banks can be calculated using the bank specific calculator like ICICI FD Calculator, HDFC FD Calculator and many more respectively.