What is a PPF Calculator?
A PPF calculator estimates the maturity amount of your Public Provident Fund account based on your yearly deposit, the current PPF interest rate and the account duration. It also shows the total interest earned and a year-by-year breakdown of your balance.
PPF is a government-backed savings scheme with a 15-year lock-in and EEE tax status — your deposits, interest and maturity amount are all tax-free — making it a favourite for safe, long-term wealth creation.
How to use the PPF Calculator
- 1Enter your yearly investment (₹500 to ₹1.5 lakh).
- 2Enter the current PPF interest rate (7.1% at the time of writing — it is reviewed every quarter).
- 3Choose the duration: 15 years, or extended in 5-year blocks.
- 4See the invested amount, interest earned and maturity value.
PPF Calculation Formula
- F
- — Maturity value
- P
- — Yearly deposit
- i
- — Annual interest rate ÷ 100
- n
- — Number of years
Assumes the deposit is made at the start of each financial year (before 5th April), so it earns interest for the full year.
Example: ₹1.5 lakh a year in PPF at 7.1% for 15 years
| Total invested | ₹22,50,000 |
|---|---|
| Total interest (tax-free) | ₹18,18,209 |
| Maturity value | ₹40,68,209 |
Extend the account by another 5 years with the same deposit and the corpus grows to about ₹66.6 lakh.
Key PPF rules
- Tenure — 15 years, extendable in 5-year blocks.
- Deposits — ₹500 minimum and ₹1.5 lakh maximum per financial year.
- Loan — available from the 3rd to the 6th financial year.
- Partial withdrawal — allowed from the 7th financial year.
- Tax — deposits qualify for Section 80C (old regime); interest and maturity are tax-free.
Who should invest in PPF?
PPF suits conservative investors who want guaranteed, tax-free returns for long-term goals such as retirement or a child's education. Because returns are fixed and lower than equities over long periods, many investors combine PPF with equity SIPs for a balanced portfolio.
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Results from this calculator are estimates based on the inputs and assumptions you enter. They are for information and education only and are not financial, tax or investment advice.