FD Calculator – Fixed Deposit Maturity

What is the FD Calculator?

A Fixed Deposit locks money for a chosen tenure at a guaranteed interest rate. The FinanceDeck FD Calculator computes the exact maturity value and interest earned using quarterly compounding — the default method used by almost every Indian bank.

Fixed deposits remain the most popular safe investment in India for a reason: capital protection, predictable returns and DICGC insurance up to ₹5 lakh per bank. This tool helps you compare rates across banks, decide between senior citizen and regular rates, and choose the tenure that fits your goal.

How does it work?

The calculator applies the compound-interest formula with a compounding frequency of 4 (quarterly). Enter your principal, the bank's advertised rate, and the tenure in years — the maturity value updates instantly.

Small rate differences compound into meaningful amounts over 5–10 year FDs, so it pays to shop around. Small finance banks and corporate FDs often offer 1–2% higher rates than large PSU banks; use this tool to quantify the extra rupees before deciding.

Formula

A = P × (1 + r/n)^(n × t)

Example

Deposit ₹1,00,000 at 7.1% p.a. for 5 years. With quarterly compounding, n = 4 and t = 5.

Maturity comes to about ₹1,42,046, meaning you earn roughly ₹42,046 as interest. If a small finance bank offers 8.25%, the same deposit grows to about ₹1,50,547 — an extra ₹8,500 for the same lock-in.

Benefits

✓Predictable, guaranteed maturity value
✓Instant comparison across banks and tenures
✓Understand the impact of quarterly vs. yearly compounding
✓Plan short-term goals like emergency funds
✓Senior citizen rates typically add 0.5% — worth modelling

Frequently Asked Questions

Is FD interest taxable?

Yes. Interest is added to your income and taxed at slab rate. TDS applies once interest crosses ₹40,000 (₹50,000 for seniors) per bank per year.

Can I break my FD early?

Yes, but banks charge a 0.5%–1% penalty on the applicable rate and pay interest only for the actual period completed.

Is FD safer than mutual funds?

For capital preservation, yes — up to ₹5 lakh per bank is insured. But long-term returns typically lag equity funds and often barely beat inflation post-tax.

Cumulative or non-cumulative FD?

Cumulative reinvests interest for higher maturity. Non-cumulative pays out interest monthly or quarterly — better for retirees needing regular income.