Utilize our user-friendly PPF Calculator to quickly determine the potential maturity value of your Public Provident Fund investment. Input your monthly contributions and investment tenure to forecast total investment, interest earned, and the final maturity amount. Start planning your long-term savings today!
Formula:
The Public Provident Fund (PPF) maturity amount is calculated based on annual contributions, compounded annually at the prevailing interest rate. While deposits can be made monthly, the interest is computed annually.
For a consistent annual investment (P) and an annual interest rate (r) over a period of (n) years, the maturity amount (M) can be approximated using the Future Value of an Annuity formula, adjusted for annual compounding of total annual contributions:
M = Σ i=1 n (Pi * (1 + r)n-i+1) (where Pi is the annual contribution in year 'i')
For a fixed annual contribution, this simplifies to:
M ≈ P * [((1 + r)n - 1) / r]
- M: Maturity Amount
- P: Annual Investment (Monthly Investment × 12)
- r: Annual Interest Rate (e.g., 7.1% becomes 0.071)
- n: Investment Period in Years
Note: This formula provides a close approximation. Actual PPF interest calculation involves interest on the lowest balance between the 5th and last day of each month, which this simplified formula doesn't account for explicitly. However, it's widely used for online estimations.