FD Calculator
Calculate your fixed deposit maturity amount, total interest earned, and effective annual rate instantly. Enter your principal, annual interest rate, tenure, and compounding frequency to get a complete breakdown with a year-by-year growth table and compounding frequency comparison. Supports quarterly, monthly, half-yearly, annual, and daily compounding. Free, private, and no signup required.
Enter your fixed deposit principal, annual interest rate, tenure, and compounding frequency to instantly calculate the maturity amount, total interest earned, and effective annual rate. All calculations run locally in your browser — your data never leaves your device.
Amount deposited in the FD
Rate offered by the bank
Most Indian banks compound quarterly
Number of years
A = P × (1 + r/n)^(n×t)
- A — Maturity amount (principal + interest)
- P — Principal (deposit amount)
- r — Annual interest rate (decimal)
- n — Compounding periods per year
- t — Tenure in years
Why Use Our FD Calculator?
Accurate FD Maturity Calculations
Our FD calculator uses the standard compound interest formula A = P(1 + r/n)^(nt) to compute your exact maturity amount and total interest earned — the same formula used by all Indian banks and NBFCs for fixed deposit calculations.
Compounding Frequency Comparison
Compare FD maturity amounts across quarterly, monthly, half-yearly, annual, and daily compounding frequencies side by side. See exactly how compounding frequency affects your returns for the same principal and rate.
Completely Private & Secure
All FD calculations happen locally in your browser. Your deposit amount, interest rate, and financial details are never sent to any server, ensuring 100% privacy when you use our FD calculator online.
No Installation Required — 100% Free
Use our free FD calculator directly in your browser — no downloads, no plugins, no account needed. Calculate fixed deposit maturity from any device, anytime, with no ads and no usage limits.
Common Use Cases for FD Calculator
Comparing Bank FD Offers
Different banks offer different FD interest rates and compounding frequencies. Use the FD calculator to compare the actual maturity amount across multiple offers — a small difference in rate or compounding frequency can mean thousands of rupees over a 3–5 year tenure.
Retirement Corpus Planning
Use the FD calculator to project how much a lump sum deposit will grow over 10–20 years. The year-by-year growth table helps you visualize the power of compounding and plan your retirement savings strategy.
Tax-Saving FD Planning
Tax-saving FDs have a mandatory 5-year lock-in period. Use the FD calculator to calculate the maturity amount for a 5-year FD at the current rate and compare it with other tax-saving instruments like ELSS or PPF.
Short-Term Savings Goals
Planning to buy a car, fund a vacation, or build an emergency fund? Use the FD calculator to find out how much a fixed deposit will grow over 6 months, 1 year, or 2 years at your bank's current rate.
Senior Citizen FD Calculations
Senior citizens typically receive 0.25–0.50% higher FD interest rates than regular customers. Use the FD calculator to compare the additional returns from the senior citizen rate and plan your post-retirement income.
Quarterly vs. Monthly Compounding
Most Indian banks compound FD interest quarterly, but some offer monthly compounding. Use the FD calculator's compounding comparison table to see the exact difference in maturity amount between quarterly and monthly compounding for your deposit.
Understanding Fixed Deposit Calculations
What is a Fixed Deposit (FD)?
A Fixed Deposit (FD) is a financial instrument offered by banks and NBFCs where you deposit a lump sum for a fixed tenure at a predetermined interest rate. Unlike savings accounts, FD interest rates are locked in at the time of deposit and are not affected by market fluctuations. The interest is compounded at regular intervals — most Indian banks compound quarterly — and the total maturity amount is paid out at the end of the tenure. Our FD calculator uses the standard compound interest formula A = P(1 + r/n)^(nt) to compute your exact maturity amount.
How Our FD Calculator Works
- 1. Enter Deposit Details: Input your principal amount, the annual interest rate offered by your bank, the FD tenure (in years, months, or days), and the compounding frequency.
- 2. Instant Calculation: Click Calculate FD Maturity. The FD calculator applies the compound interest formula locally in your browser — no data is sent to any server.
- 3. Review Results: See your maturity amount, total interest earned, effective annual rate, a compounding frequency comparison, and a year-by-year growth table.
What the FD Calculator Shows
- Maturity Amount: The total amount you receive at the end of the FD tenure — principal plus all compounded interest.
- Total Interest Earned: The total interest accumulated over the entire FD tenure.
- Effective Annual Rate (EAR): The true annual return after accounting for compounding — always higher than the nominal rate for intra-year compounding.
- Year-by-Year Growth: A table showing opening balance, interest earned, and closing balance for each year of the FD tenure.
FD vs. Other Investment Options
- FD vs. Savings Account: FDs offer significantly higher interest rates (typically 5–8% vs. 2.5–4% for savings accounts) in exchange for locking in your funds for a fixed period.
- FD vs. PPF: PPF offers tax-free returns and a 15-year tenure with partial withdrawal options. FDs offer more flexibility in tenure but interest is taxable.
- FD vs. RD: FDs require a lump sum deposit; RDs allow monthly contributions. Use the FD calculator alongside the RD calculator to compare both options.
- Tax on FD Interest: FD interest is taxable as per your income tax slab. TDS is deducted at 10% if annual interest exceeds ₹40,000 (₹50,000 for senior citizens).
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Frequently Asked Questions About FD Calculator
An FD calculator is a tool that computes the maturity amount and total interest earned on a fixed deposit based on the principal, annual interest rate, tenure, and compounding frequency. Our free online FD calculator uses the standard compound interest formula A = P(1 + r/n)^(nt) and runs entirely in your browser — no signup required.
The FD maturity formula is A = P × (1 + r/n)^(n×t), where A is the maturity amount, P is the principal, r is the annual interest rate as a decimal, n is the number of compounding periods per year, and t is the tenure in years. Our FD calculator applies this formula automatically.
Absolutely. All FD calculations happen entirely in your browser using JavaScript. Your deposit amount, interest rate, and financial details are never transmitted to any server. No data is stored, logged, or shared — your information stays completely private on your device.
Yes — our FD calculator is 100% free with no signup, no account, and no usage limits. Calculate fixed deposit maturity for any principal and tenure as many times as you need, completely free forever.
Most Indian banks compound FD interest quarterly (4 times per year). Some banks offer monthly compounding for certain FD schemes. The compounding frequency affects the effective annual rate — quarterly compounding at 7% gives an EAR of approximately 7.186%, while monthly compounding gives approximately 7.229%. Use our FD calculator's comparison table to see the exact difference.
The effective annual rate (EAR) is the true annual return after accounting for intra-year compounding. It is always equal to or higher than the nominal rate. For example, a 7% FD compounded quarterly has an EAR of (1 + 0.07/4)^4 − 1 = 7.186%. Our FD calculator displays the EAR so you can compare FD offers accurately.
Yes. Our FD calculator supports tenure input in years, months, or days. Select the appropriate unit from the dropdown and the calculator automatically converts your tenure to years before applying the formula. This is useful for short-term FDs of 7 days, 30 days, 90 days, or any custom period.
Yes. FD interest is taxable as per your income tax slab rate. Banks deduct TDS (Tax Deducted at Source) at 10% if your annual FD interest exceeds ₹40,000 (₹50,000 for senior citizens). If your total income is below the taxable limit, you can submit Form 15G (or 15H for senior citizens) to avoid TDS deduction.
In a cumulative FD, interest is compounded and paid out at maturity along with the principal — this is what our FD calculator computes. In a non-cumulative FD, interest is paid out at regular intervals (monthly, quarterly, or annually) rather than being reinvested. Non-cumulative FDs are preferred by retirees who need regular income.