A Fixed Deposit (FD) is one of the simplest, safest savings instruments for guaranteed returns. Fixed Deposit (FD) Calculator removes the guesswork: enter your principal, interest rate, tenure, and compounding frequency to see the maturity amount and total interest earned instantly. This helps you compare banks, choose tenures and plan cash flow for goals like a car, home down-payment or emergency corpus.
Fixed Deposit Calculator
Calculate your FD maturity amount and interest earnings
FD Maturity Details:
Principal Amount: ₹0
Interest Earned: ₹0
Total Value: ₹0
About Fixed Deposits
A Fixed Deposit (FD) is an investment instrument offered by banks and NBFCs where you deposit money for a fixed tenure at a fixed interest rate.
Key Features:
- Higher interest rates than savings accounts
- Guaranteed returns (no market risks)
- Flexible tenure options (7 days to 10 years)
- Tax benefits under Section 80C for 5-year FDs
Formulas Used:
Simple Interest: SI = P × r × t
Compound Interest: A = P × (1 + r/n)^(n×t)
Where:
P = Principal amount
r = Annual interest rate (decimal)
t = Time in years
n = Number of compounding periods per year
What this FD Calculator does
- Computes maturity amount for common compounding frequencies (annual, semi-annual, quarterly, monthly, or simple interest).
- Shows total interest earned and effective annual yield.
- Let’s you run side-by-side scenarios (different rates or tenures) to pick the best option.
- Export results or copy them to your calculator page for embedding.

How the math works (formula)
For compound interest, the maturity amount A is:
A = P × (1 + r/n)^(n×t)
Where:
- P = principal (initial deposit)
- r = annual nominal interest rate (decimal, e.g. 6.5% → 0.065)
- n = number of compounding periods per year (1, 2, 4, 12…)
- t = time in years
Example (step-by-step):
Deposit ₹100,000 at 6.5% p.a., compounded annually for 3 years.
- r = 6.5% = 0.065
- n = 1 (annual), t = 3
- Compute (1 + r/n) = 1 + 0.065 = 1.065
- Raise to power n×t = 1.065³ = 1.065 × 1.065 × 1.065 = 1.130 (approx).
- Multiply by P: 100,000 × 1.130 = ₹120,794.96 (maturity amount).
- So total interest earned ≈ is ₹20,794.96.
(We show precise arithmetic in the tool so users can trust the numbers.)
Practical tips for users
- Check whether the bank compounds quarterly or monthly — compounding more frequently increases effective returns.
- For laddering strategies, split a large sum into FDs with staggered maturities to manage liquidity.
- Compare post-tax returns: interest on FDs is taxable; add tax effects if you want after-tax maturity.
- Watch for premature withdrawal penalties — our FD Calculator can simulate early withdrawal scenarios.
Some useful calculators you must checkout
Please reach out to :
- Reserve Bank of India — for official savings & deposit guidelines (rbi.org.in)
FAQs
Q1: What inputs do I need for an FD Calculator?
A: Principal, annual interest rate (%), tenure (years/months), and compounding frequency.
Q2: Does compounding frequency affect returns?
A: Yes — monthly or quarterly compounding yields slightly higher returns than annual compounding at the same nominal rate.
Q3: Is FD interest taxable?
A: Yes — interest earned is taxable per your income tax slab; TDS rules may apply to banks.
Q4: Can I calculate premature withdrawal?
A: A good FD Calculator can simulate early closure by applying the bank’s penalty rate and reduced interest period.
Q5: Which is better — FD or recurring deposit?
A: FDs suit lump-sum investments; recurring deposits are better for monthly savings. Use our FD and SIP calculators to compare.
