FD Calculator - Fixed Deposit Calculator
Calculate Fixed Deposit maturity amount and interest earned for any bank, tenure, and interest rate.
About this calculator
The FD Calculator gives you the maturity value of a fixed deposit in a few seconds. Enter the amount, the rate, the tenure in years and months and the compounding frequency, and it shows the interest earned and the amount you receive at maturity.
It is the simple version for a quick check before you walk into a branch or open an FD online. Use the FD Calculator India for tax and senior citizen options.
How to use it
- Enter the Principal Amount and the Annual Interest Rate.
- Enter the tenure in Years and Months.
- Choose the Compounding Frequency. Quarterly is standard at most banks.
- Press Calculate FD.
Formula
Maturity = P × (1 + r ÷ n)n × t, where r is the annual rate as a decimal, n the compounding periods a year and t the tenure in years. Months are converted to a fraction of a year.
Worked example
₹1,00,000 for 3 years at 7%, quarterly compounding
| Maturity amount | ₹1,23,144 |
| Interest earned | ₹23,144 |
Switching to annual compounding would give ₹1,22,504, about ₹640 less over the three years.
Tips and common mistakes
- Check the compounding your bank uses. It changes the maturity amount.
- Longer is not always better. Some banks pay more for 1 to 2 years than for 5.
- Small finance banks pay more but have the same ₹5 lakh deposit insurance limit.
- Interest is taxable. See the FD Calculator India for the post-tax view.
- Keep an emergency fund separate so you do not break the FD.
Frequently asked questions
How is FD maturity calculated?
Maturity = P(1 + r/n)^(nt). The interest is the maturity minus the principal.
Which compounding is best?
More frequent compounding gives slightly more. Monthly beats quarterly beats annual, though the differences are small.
What if my tenure is in days?
Divide the days by 365 and enter the result in months, or use the FD Calculator India for months and years.
Is the interest rate fixed?
Yes, for the whole tenure, unless you choose a floating deposit.
Does it include tax?
No. Use the FD Calculator India for tax.
Can I enter a decimal rate?
Yes, for example 7.25.