PPF Calculator
Calculate your Public Provident Fund maturity value. Enter yearly deposit, interest rate and tenure to see total invested, interest earned and final corpus.
Updated 2026-06-14 · Free · No sign-up · Runs privately in your browser
Show the formula & steps
How the PPF Calculator Works
This calculator estimates the maturity value of a Public Provident Fund (PPF) account. Enter your yearly deposit, the annual interest rate and the tenure in years, and it returns your total invested amount, the interest earned and the final corpus. PPF is a government-backed, tax-free savings scheme with a default 15-year term.
The Formula
PPF interest compounds annually. Treating each year’s deposit as made at the start of the year, the balance rolls forward like this:
Balance (this year) = (previous balance + yearly deposit) × (1 + annual rate)
Repeat this for every year of the tenure. The final balance is the maturity value:
Total invested = yearly deposit × number of years Total interest = maturity value − total invested
Worked Example
Suppose you deposit ₹1,50,000 every year at 7.1% per annum for 15 years:
- Year 1: (0 + 1,50,000) × 1.071 = ₹1,60,650
- Year 2: (1,60,650 + 1,50,000) × 1.071 = ₹3,32,706
- …continuing for all 15 years…
- Maturity value ≈ ₹40,68,209
The breakdown is:
- Total invested = 1,50,000 × 15 = ₹22,50,000
- Total interest = 40,68,209 − 22,50,000 = ₹18,18,209
Growth at the ₹1.5 Lakh Maximum (7.1% p.a.)
| Years | Total invested | Maturity value |
|---|---|---|
| 5 | ₹7,50,000 | ₹9,25,701 |
| 10 | ₹15,00,000 | ₹22,30,124 |
| 15 | ₹22,50,000 | ₹40,68,209 |
Why PPF Is Popular
- Tax benefits: deposits up to ₹1,50,000 qualify for a Section 80C deduction, and both the interest and the maturity amount are tax-free (EEE status).
- Government backing: PPF is one of the safest fixed-income instruments in India.
- Disciplined long-term saving: the 15-year lock-in encourages a buy-and-hold approach that benefits from compounding.
Important Notes
- The official PPF rate is revised quarterly, so a real account may earn slightly different interest each quarter. This tool assumes a constant rate.
- Actual PPF interest is computed on the minimum balance between the 5th and last day of each month, so depositing before the 5th maximises interest. This calculator uses the standard annual approximation.
- The annual deposit cap is ₹1,50,000 and the minimum is ₹500.
For other long-term planning, compare a fixed deposit or a recurring deposit using their dedicated calculators.
Frequently asked questions
How is PPF maturity amount calculated?+
Each year the deposit is added to the running balance and the whole balance earns interest at the annual rate. Repeating this for the tenure (15 years by default) gives the maturity value. The interest compounds annually, so later years grow the corpus faster.
What is the current PPF interest rate?+
The PPF rate is set by the government and revised every quarter. It has recently been around 7.1% per annum. Enter the latest notified rate in the calculator for an accurate projection, since the rate can change each quarter.
How much will I get if I invest 1.5 lakh per year in PPF?+
Investing ₹1,50,000 per year for 15 years at 7.1% gives a maturity value of about ₹40,68,209 — roughly ₹22,50,000 invested and ₹18,18,209 in interest, assuming the rate stays constant.
What is the maximum I can invest in PPF per year?+
The maximum allowed deposit is ₹1,50,000 per financial year, and the minimum is ₹500. Deposits qualify for a tax deduction under Section 80C, and the interest and maturity amount are tax-free in India.
What is the lock-in period for PPF?+
PPF has a 15-year lock-in from the end of the financial year in which the account is opened. After maturity you can extend it in blocks of 5 years, with or without further contributions. Partial withdrawals are allowed from the 7th year.