15-year PPF corpus & interest. The PPF Calculator takes yearly deposit (up to ₹1.5 lakh), interest rate, years (15 minimum, extendable in blocks of 5) and returns maturity value plus total deposited, interest earned (tax-free). Results update as you type, and the formula is shown under the result so you can repeat it in your own spreadsheet.
Government-backed schemes publish their interest rates quarterly and market-linked funds do not guarantee returns. Enter the current rate for the scheme and treat market-return assumptions as scenarios rather than promises. Use the worked example below to check the maths against your own figures.
How the PPF Calculator works
The Public Provident Fund compounds yearly at a government-set rate, and both the deposit (under 80C) and the interest are tax-free. Depositing before the 5th of April earns the full year's interest.
Worked example
With the example values (yearly deposit (up to ₹1.5 lakh) of ₹150,000, interest rate of 7.1%, years (15 minimum, extendable in blocks of 5) of 15), the maturity value is ₹4,068,209.22; total deposited ₹2,250,000.00, interest earned (tax-free) ₹1,818,209.22. Change any figure above and the result updates immediately; use Copy results to paste the summary into a note or email.
Assumptions and limits: Rate is revised quarterly by the government; deposits capped at ₹1.5 lakh a year.
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Frequently Asked Questions
How is maturity value calculated?
maturity = yearly deposit × [(1 + r)n − 1] ÷ r × (1 + r), assuming deposits at the start of each year.
Which figures do I need?
Yearly deposit (up to ₹1.5 lakh), interest rate, years (15 minimum, extendable in blocks of 5). Take them from the same period and the same set of accounts or reports so the ratio is consistent, and check the example values as a guide to the units expected.
Is the interest rate fixed?
Small-savings rates are reviewed by the government every quarter and bank rates change with policy; market-linked schemes have no fixed rate at all. Enter the current rate for your scheme and revisit the result when rates change.
What assumptions does this calculator make?
Rate is revised quarterly by the government; deposits capped at ₹1.5 lakh a year.
