Post Office FD Calculator


Investment amount should be atleast ₹ 1000 in multiples of ₹ 100.
Post Office Fixed/Time deposit availble only for 1,2,3 or 5 years.
Duration should be one of 1, 2, 3 or 5 years.
Change the "Years" option to view different interest rates.
Interest Earned Per Year

₹ 0

Total Interest Earned

₹ 0

How to use our Post Office FD Calculator?

Our Post Office FD Calculator is one of the best calculator available out there, follow the below steps to find out the FD interest earned through Post Office.

  1. Enter your Investment Amount in the Amount input field. You should atleast invest ₹ 1,000 and it should be in the multiples of $ 100.
  2. Select the Duration (years) from the dropdown. The Post Office offers Fixed/Time deposit for the duration of 1, 2, 3 or 5 years.
  3. One you select your prefered duration, The Rate of Interest is auto populated with the latest rate.
  4. The Interest amount you earn per year & Total Interest earned will be displayed automatically as soon as you enter your details.

How does our Post Office FD Calculator work?

Our Post Office FD Calculator helps you estimate the total interest earned and the maturity amount based on your fixed deposit amount and duration. It considers quarterly compounding to ensure accuracy in calculations.

Post Office Fixed Deposit Calculator Formula


Maturity Amount = Principal × (1 + (Rate of Return / 400)) ^ (Quarters)

  • Principal = Fixed amount you invest in FD
  • Rate of Return = Annual interest rate (currently 7.1% for 3 years)
  • Duration = Total tenure in years (1, 2, 3, or 5 years)
  • Quarters = Duration in years × 4


Interest Earned = Maturity Amount - Principal

Example: Post Office FD Interest Calculation for ₹1,00,000 for 3 Years

Suppose you invest ₹1,00,000 in a Post Office FD, at an interest rate of 7.1% for 3 years.

Maturity Amount is calculated using the formula:
₹1,00,000 × (1 + (7.1 / 400)) ^ (3 × 4) = ₹1,21,300

Interest Earned is:
₹1,21,300 - ₹1,00,000 = ₹21,300

Our Post Office FD Calculator makes it easy to determine your maturity amount without manual calculations. Unlike other FD calculators, we ensure our interest rates are always up to date.


Frequently Asked Questions:

1. What exactly is a Post Office Fixed Deposit (FD) account?

It's a fixed deposit account where you invest a lump sum for a set period (1, 2, 3, or 5 years). The interest is calculated quarterly but paid once a year.

2. What is the minimum amount required to open a Post Office FD account?

You need to open a Post Office FD account with a minimum deposit of INR 1000, and the amount must be in multiples of INR 100.

3. Is there any maximum limit for the deposit?

No, there is no maximum limit. You can deposit as much money as you wish.

4. What are the current interest rates for Post Office FD accounts?

For the period from 01.01.2024 to 31.03.2024, the interest rates are as follows:
• 1-year account: 6.9%
• 2-year account: 7.0%
• 3-year account: 7.1%
• 5-year account: 7.5%

5. Who can open a Post Office FD account?

A Post Office FD account can be opened by:
• A single adult
• Joint account holders (up to 3 adults)
• A guardian for a minor or a person of unsound mind
• A minor (above 10 years) in his own name

6. How is the interest calculated and paid?

Although interest is calculated quarterly, it is paid annually. No extra interest is paid on the accumulated but undisbursed interest.

7. What happens when my Post Office FD account matures?

On maturity (after 1, 2, 3, or 5 years), your deposit is returned. You can also choose to extend the account for another term of the same duration by applying within the prescribed period.

8. Can I withdraw my money before the account matures?

Withdrawals are not allowed before 6 months from the deposit date. If you withdraw after 6 months but before full maturity, the interest rate will be adjusted as per the guidelines.

9. Can my Post Office FD account be used as security?

Yes, a Post Office FD account can be pledged or transferred as security by submitting the required application along with supporting documents.

10. Are there any tax benefits with a Post Office FD account?

Yes, investments in a 5-year Post Office FD account qualify for tax benefits under Section 80C of the Income Tax Act, 1961.