Fixed Deposits
How FD interest is calculated
For a cumulative FD, maturity is commonly estimated with compound interest using the deposit, annual rate, tenure and compounding frequency.
Compound interest formula
A = P × (1 + r/n)^(n × t). P is the deposit, r is annual rate as a decimal, n is periods per year and t is years.
Worked example
₹5,00,000 at 7.25% for five years, compounded quarterly, gives an estimated maturity of about ₹7,16,130. Estimated interest is about ₹2,16,130.
Product terms still matter
Banks may use specific day-count conventions, payout options, renewal rules and premature-withdrawal terms. This is not a bank quote.
How to check an FD estimate
For a cumulative FD, calculate A = P × (1 + r/n)^(n × t). With ₹5,00,000 at 7.25% for five years and quarterly compounding, the result is about ₹7,16,130; estimated interest is about ₹2,16,130. Use the bank's maturity advice when its tenure or day-count convention differs.
This guide is for general education. Rules, lender terms, bank terms and individual circumstances can change the result.
Use the relevant calculatorFrequently asked questions
Is the maturity result a bank quote?
No. It is a compound-interest estimate based on the entered inputs; product terms can change actual proceeds.
Does this calculator include TDS or early-withdrawal effects?
No. Check the bank's terms and current applicable tax rules for those details.