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FD Calculator — Fixed Deposit Maturity Calculator

Calculate maturity amount and interest earned on your Fixed Deposit with quarterly compounding as used by Indian banks.

FD Details
%
Yr
1 Yr20 Yr

Deposit Amount

₹1,00,000

Interest Earned

₹41,478

Maturity Amount

₹1,41,478

FD Growth Over Time

How FD Interest is Calculated in India

Indian banks calculate FD interest using quarterly compounding. This means interest is calculated every quarter and added to the principal, which then earns interest in subsequent quarters. This compound interest effect gives you slightly higher returns than simple interest calculation. For example, ₹1 lakh at 7% for 1 year with quarterly compounding gives ₹1,07,186 (effective yield 7.186%), compared to ₹1,07,000 with simple interest.

Choosing the Right FD

When selecting an FD, compare rates across banks using this calculator. Consider: 1) Regular vs cumulative FD — cumulative gives higher returns due to compounding. 2) Tenure — longer tenure may not always mean higher rates. 3) Tax impact — post-tax returns matter more than pre-tax rates. 4) Bank safety — deposits up to ₹5 lakhs are insured by DICGC per bank.

Formula & How It Works

Formula
A = P × (1 + r/n)^(n×t)

Where P is the deposit amount, r is annual interest rate, n is compounding frequency (4 for quarterly), and t is tenure in years.

Indian banks typically compound FD interest quarterly.

Worked Example

Deposit: ₹1,00,000 at 7% for 5 years, quarterly compounding.

A = 1,00,000 × (1 + 0.07/4)^(4×5) = ₹1,41,478.

Interest earned: ₹41,478.

Benefits of Using FD Calculator

Guaranteed returns — FD rates are fixed at the time of deposit.

Compare rates across SBI, HDFC, ICICI, and other banks.

Plan your savings by knowing exact maturity amounts.

Understand the impact of different compounding frequencies.

Tax-saving FDs offer Section 80C deduction up to ₹1.5 lakh.

Common Mistakes to Avoid

Not comparing FD rates across banks — rates can differ by 1-2%.

Ignoring TDS — interest above ₹40,000/year (₹50,000 for senior citizens) attracts 10% TDS.

Premature withdrawal incurs a 0.5-1% penalty on interest rate.

Not considering inflation — 7% FD return with 6% inflation gives only 1% real return.

Frequently Asked Questions