Compound interest • Safe returns

FD Calculator

Calculate maturity amount and interest on your fixed deposit. Quarterly or yearly compounding.

FD details

Result

Maturity amount

Interest earned

How FD interest is calculated

Maturity = Principal × (1 + r/f)^(f×t), where r = annual rate, f = compounding frequency per year (4 for quarterly, 1 for yearly), t = tenure in years. Interest = Maturity − Principal.

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Frequently Asked Questions

How is FD interest calculated?

Maturity = Principal × (1 + r/f)^(f×t), where r = annual rate, f = compounding frequency per year (4 for quarterly, 1 for yearly), t = tenure in years. Interest = Maturity − Principal. Banks typically compound quarterly.

What is the difference between quarterly and yearly compounding?

Quarterly: interest is calculated and added every 3 months (f=4), so you earn interest on interest more often. Yearly: interest is added once a year (f=1). Quarterly compounding usually gives a slightly higher maturity for the same rate.

Is TDS on FD included?

This calculator shows gross interest. TDS may apply if interest exceeds ₹40,000 (₹50,000 for seniors) in a year. Actual in-hand amount may be lower after TDS. Check with your bank for TDS rules.

Can I use this for senior citizen FDs?

Yes. Enter the principal, tenure and the interest rate your bank offers for senior citizen FDs (usually 0.25–0.50% higher). The formula is the same.

Is this FD calculator free?

Yes. This FD calculator is free. Calculate maturity and interest for any principal, rate and tenure. No signup required.