PPF Calculator (India)
Estimate the maturity value of your Public Provident Fund. Enter your yearly deposit, the interest rate and the tenure to see your total invested and interest earned.
The Public Provident Fund is one of India's most popular long-term savings schemes: it's government-backed, the interest is tax-free, and deposits qualify for a Section 80C deduction. It runs for 15 years and pays interest compounded annually at a rate the government revises each quarter. This calculator projects your maturity value from a fixed yearly deposit and rate, so you can see how the tax-free compounding builds up.
How PPF maturity is calculated
Each year's deposit earns compound interest for the remaining years, so the calculation is a future value of a series. With a deposit made each year and annual compounding:
where D = yearly deposit, r = annual rate, n = years
| Yearly deposit | 15-yr maturity at 7.1% |
|---|---|
| ₹50,000 | ₹13,56,070 |
| ₹1,00,000 | ₹27,12,139 |
| ₹1,50,000 (max) | ₹40,68,209 |
Worked example
₹1,50,000 a year for 15 years at 7.1%:
| Total invested = 1,50,000 × 15 | ₹22,50,000 |
| Maturity value | ₹40,68,209 |
| Interest (tax-free) | ₹18,18,209 |
Key PPF rules
You can invest between ₹500 and ₹1.5 lakh a year, in one go or instalments, and the account matures after 15 financial years. Interest is calculated on the lowest balance between the 5th and last day of each month, so depositing before the 5th earns slightly more — this calculator uses a simpler year-end model. Deposits qualify for 80C relief and both the interest and maturity are exempt from tax, making PPF an EEE (exempt-exempt-exempt) instrument. After 15 years you can withdraw, extend with fresh deposits, or extend without further deposits.