This FD calculator estimates fixed deposit maturity value and interest from principal, annual rate, tenure, and compounding frequency. Bank conventions and taxes can differ from a clean compound formula, so confirm the deposit sheet before you invest.
Fixed deposits lock money for a term in exchange for a stated rate schedule. This fd calculator helps you compare maturity amounts before you commit. It is an educational estimate and does not include every bank fee or tax rule.
Explore more under investment and savings. Related tools: compound interest calculator, simple interest calculator, inflation calculator, and SIP calculator.
FD maturity = P × (1 + r/4)^(4 × years) for quarterly compounding, which is what most Indian banks use for cumulative FDs. ₹1,00,000 at 6.25% for 1 year grows to about ₹1,06,398, and at 6.30% for 3 years to about ₹1,20,626. Interest = maturity − principal. Under current rules (FY 2025-26 onward), banks deduct 10% TDS once your FD interest at one bank exceeds ₹50,000 in a year (₹1,00,000 for senior citizens).
What this fd calculator estimates
The primary result is maturity value after compounding for the term. Detail shows interest earned as maturity minus principal. Frequency choices such as quarterly compounding change how often interest is added.
How to estimate fixed deposit maturity
- Enter the deposit principal.
- Enter the annual interest rate percent.
- Enter the term in years.
- Choose compounding frequency.
- Compare maturity and interest earned.
How the calculation works
Maturity = P × (1 + r ÷ n)^(n × t)
Interest earned = Maturity − P
P is principal, r is annual rate as a decimal, n is compounds per year, and t is time in years. This matches Multicalify compound interest math used for FD style deposits.
Example: P = 100,000, r = 7% (0.07), t = 3 years, n = 4 quarterly. Maturity = 100000 × (1 + 0.07/4)^(4×3) ≈ 123,143. Interest earned ≈ 23,143.
| Input | Value |
|---|---|
| Principal | 100,000 |
| Rate | 7% annual |
| Years | 3 |
| Frequency | 4 (quarterly) |
FD calculator versus compound interest calculator
The math family is related, but this page keeps bank deposit framing: principal, tenure, and compounding cadence for a fixed deposit. The compound interest page is the general purpose version. Use inflation tools to see whether maturity gains outpace rising prices.
SBI FD rates 2026 (below ₹3 crore)
| Tenure | General | Senior citizen |
|---|---|---|
| 7–45 days | 3.05% | 3.55% |
| 46–179 days | 4.90% | 5.40% |
| 180–210 days | 5.65% | 6.15% |
| 211 days to under 1 year | 5.90% | 6.40% |
| 1 to under 2 years | 6.25% | 6.75% |
| 2 to under 3 years | 6.40% | 6.90% |
| 3 to under 5 years | 6.30% | 6.80% |
| 5 to 10 years | 6.05% | 7.05% (incl. WeCare) |
| Amrit Vrishti (444 days) | 6.45% | — |
SBI card rates effective 15 Dec 2025, page checked Oct 2026. Rates change; confirm with your bank. Source: SBI retail domestic term deposit rates.
What ₹1,00,000 grows to (quarterly compounding)
| Rate and tenure | Maturity | Interest |
|---|---|---|
| 6.25%, 1 year | ₹1,06,398 | ₹6,398 |
| 6.40%, 2 years | ₹1,13,540 | ₹13,540 |
| 6.30%, 3 years | ₹1,20,626 | ₹20,626 |
| 6.05%, 5 years | ₹1,35,018 | ₹35,018 |
| 7.05%, 5 years (senior) | ₹1,41,826 | ₹41,826 |
Compounding at 7% for 5 years: yearly ₹1,40,255; half-yearly ₹1,41,060; quarterly ₹1,41,478; monthly ₹1,41,763; simple interest ₹1,35,000. 6.25% compounded quarterly = 6.398% effective annual yield.
TDS and deposit insurance
| Rule | Under current rules (FY 2025-26 onward) |
|---|---|
| TDS rate on FD interest | 10% (20% if no PAN) |
| TDS threshold, per bank per year | ₹50,000 (₹1,00,000 senior citizens) |
| Example | ₹60,000 interest → ₹6,000 TDS |
| DICGC insurance | ₹5,00,000 per depositor per bank, principal + interest |
Deposit insurance source: DICGC FAQs. TDS figures are as reported by secondary sources under current rules (FY 2025-26 onward) and may change, so confirm with your bank. Form 15G/15H lets eligible depositors avoid TDS.
Factors that change real outcomes
- Bank compounding convention versus your frequency choice
- Payout versus reinvestment options
- Taxes on interest
- Penalties for early withdrawal
- Inflation over the term
FD comparison mistakes savers make
- Comparing a monthly compound quote with an annual quote without aligning frequency
- Ignoring tax drag on interest
- Assuming premature withdrawal still pays full maturity
- Forgetting inflation when judging whether the deposit grew in real terms
Limitations
Estimates exclude special bank schemes and currency effects; see the TDS section for tax rules. Confirm the deposit confirmation sheet before you invest.
The tool takes tenure in years only (enter 444 days as 1.22 years) and does not model payout FDs or TDS.
Comparing FD quotes
Match principal, rate, term, and compounding to the offer, compare interest earned, and check premature withdrawal rules. Two deposits with the same nominal rate can mature differently if one compounds quarterly and another pays simple interest, so align frequency with the bank quote before you crown a winner.
Some savers ladder deposits, splitting funds across several tenures so money frees up on a schedule. Run this calculator once per rung and sum the maturity values. For how deposits work, read how a fixed deposit works; to test purchasing power use the inflation calculator, and for contribution-style investing see the SIP calculator.
Related: Compound Interest Calculator · Inflation Calculator · Savings Calculator · how a fixed deposit works.