What is a Post Office PPF Calculator?
A PPF calculator estimates the maturity value of a Public Provident Fund account from your yearly or monthly deposits, the PPF interest rate and the number of years, including 5-year extensions after the first 15 years.
Post Office PPF Calculator projects a PPF account held at a post office. The scheme, rate and rules are the same as a PPF account at a bank, because PPF is a government scheme; only the place where the account is kept differs.
How does the Post Office PPF Calculator work?
PPF interest is worked out every month on the lowest balance between the 5th and the end of the month, and added to the account once a year. This calculator assumes deposits are made before the 5th.
Each month: balance += deposit; interest += balance × rate ÷ 12
Year end: balance += interestWorked example using the starting values on this page:
- Yearly investment
- ₹60,000
- Interest rate (p.a.)
- 7.1%
- Time period
- 15 years
- Deposit
- Monthly
- Total invested
- ₹9,00,000
- Interest earned
- ₹6,77,840
- Maturity value
- ₹15,77,840
How to use the Post Office PPF Calculator
- Enter the yearly investment (anywhere from ₹500 to ₹1,50,000). Type it in the box or drag the slider.
- Enter the interest rate (p.a.) (anywhere from 1.0% to 12.0%). Type it in the box or drag the slider.
- Enter the time period (anywhere from 15 years to 50 years). Type it in the box or drag the slider.
- Choose deposit: Monthly or Yearly.
- Read the maturity value at the top of the results, then check the breakdown below it.
- Change one input at a time to compare scenarios, and note how much each change moves the result.
Benefits of using the Post Office PPF Calculator
- Applies the scheme’s own rules (deposit limits, tenure and how interest is credited) rather than a generic formula.
- Shows the year-by-year picture so you can see how the balance builds over the life of the scheme.
- Lets you check the effect of a rate change, since government scheme rates are revised every quarter.
- Free and instant, with the assumptions listed, so you know what the estimate does and does not include.
Mistakes to avoid with the Post Office PPF Calculator
The common mistake is assuming today’s PPF rate will apply unchanged for 15 years.
Deposit timing matters: money deposited before the 5th earns interest for that month.
Helpful checks before using the result
These checks make a post office ppf more useful in practice.
- Start with a realistic base case rather than the first value that fits the range slider.
- Change one major assumption at a time so the effect stays easy to interpret.
- Use the result to compare scenarios, not as a final provider quote or guaranteed outcome.
- Verify rates, rules, and product terms separately before acting on the estimate.
Post office PPF basics
Same scheme, wherever the account is opened.
- The interest rate is notified by the government every quarter and is the same at post offices and banks.
- Minimum ₹500 and maximum ₹1.5 lakh a financial year, in one go or in instalments.
- The account matures after 15 years and can be extended in 5-year blocks.
- Partial withdrawals and loans are allowed after set years, with limits.
Monthly deposit examples
At 7.1% for 15 years, deposits before the 5th of each month.
₹500 a month
About ₹1,57,784 on ₹90,000 invested.
₹1,000 a month
About ₹3,15,568 on ₹1.8 lakh invested.
₹5,000 a month
About ₹15,77,840 on ₹9 lakh invested.
Post Office PPF Calculator FAQs
Is the post office PPF rate different from banks?
No. PPF is a government scheme and the rate is the same everywhere it is offered.
What is the maturity on ₹1,000 a month in post office PPF for 15 years?
At 7.1% with deposits before the 5th of each month, about ₹3,15,568.
Can I transfer a PPF account from a post office to a bank?
Yes, a PPF account can be transferred between a post office and a bank or between banks without breaking its continuity.
What happens if I miss a year’s deposit?
The account becomes inactive; it can be revived by paying the minimum deposit for each missed year plus a small penalty.
