How much will my FD earn?
Type your deposit, the bank’s yearly FD rate, the tenure in years and months, and how often interest is compounded. The FD calculator gives the maturity amount, the interest earned and the effective yearly yield.
- Maturity amount (₹)
- 141,477.82
₹100,000 in an FD at 7% grows to ₹141,477.82, earning ₹41,477.82.
- Deposit (₹)
- 100,000
- Interest earned (₹)
- 41,477.82
- Effective yearly yield
- 7.19%
- Compounding periods
- 20
- Months at simple interest
- 0
Maturity amount (₹): 141,477.82. ₹100,000 in an FD at 7% grows to ₹141,477.82, earning ₹41,477.82.
How much of the maturity amount is interest?
The results are estimates for information only. They are not financial, tax, or legal advice. Check the numbers with your lender or a qualified professional before you decide. Terms of use
How to calculate
Works out the maturity amount and the interest of a fixed deposit (FD) in rupees from the deposit, the yearly rate, the tenure and how often the bank compounds interest.
Example with the default inputs (Deposit (₹) 100,000, Interest rate a year 7%, Tenure: years 5, Interest compounded Quarterly): ₹100,000 in an FD at 7% grows to ₹141,477.82, earning ₹41,477.82.
Method: m = compoundings a year; q = whole periods in the tenure; L = months left over; A = P × (1 + r ÷ m)^q × (1 + r × L ÷ 12); interest = A − P.
- The rate stays the same for the whole tenure, and the interest stays in the deposit until maturity (a cumulative FD).
- Months after the last whole compounding period earn simple interest on the grown amount. Banks count the days of a broken period, so their figure can differ by a few rupees.
- Tax deducted at source (TDS) and premature withdrawal penalties are not included.
Worked examples
Each example is checked against the calculator on every build.
- Deposit (₹) 100,000, Interest rate a year 7%, Tenure: years 5, Interest compounded Quarterly gives Maturity amount (₹) 141,477.819576, Interest earned (₹) 41,477.819576, Effective yearly yield 7.185903%, Compounding periods 20.Source: U.S. Securities and Exchange Commission, Investor.gov, Compound interest calculator and formula, https://www.investor.gov/financial-tools-calculators/calculators/compound-interest-calculator (retrieved 2026-10-03)
- Deposit (₹) 50,000, Interest rate a year 6.5%, Tenure: years 1, and months 4, Interest compounded Quarterly gives Maturity amount (₹) 54,490.259674, Compounding periods 5, Months at simple interest 1.Source: Reserve Bank of India, Master Direction: Interest Rate on Deposits, 2016 (banks set term deposit rates and must disclose them; premature withdrawal earns the rate for the period the deposit stayed), https://www.rbi.org.in/Scripts/BS_ViewMasDirections.aspx?id=10394 (retrieved 2026-10-03)
- Deposit (₹) 10,000, Interest rate a year 4%, Tenure: years 5, Interest compounded Yearly gives Maturity amount (₹) 12,166.529024, Effective yearly yield 4%.
- Deposit (₹) 25,000, Interest rate a year 6%, Tenure: years 0, and months 2, Interest compounded Quarterly gives Maturity amount (₹) 25,250, Interest earned (₹) 250, Compounding periods 0.
- Deposit (₹) 200,000, Interest rate a year 7.2%, Tenure: years 1, Interest compounded Monthly gives Maturity amount (₹) 214,884.833544, Effective yearly yield 7.442417%.Source: U.S. Securities and Exchange Commission, Investor.gov, Compound interest calculator and formula, https://www.investor.gov/financial-tools-calculators/calculators/compound-interest-calculator (retrieved 2026-10-03)
How it works
The tenure is T = 12 × years + months (an empty months box counts as 0); it must be at least 1 month. The compounding gives m periods a year (monthly 12, quarterly 4, half-yearly 2, yearly 1), each 12 ÷ m months long.
- Compounding periods q = ⌊T ÷ (12 ÷ m)⌋, the whole periods in the tenure.
- Months at simple interest L = T − q × (12 ÷ m).
- Maturity amount A = P × (1 + r ÷ m)^q × (1 + r × L ÷ 12), with P the deposit and r the yearly rate as a decimal.
- Interest earned = A − P.
- Effective yearly yield = (1 + r ÷ m)^m − 1.
Rules
- Deposit from ₹1 to ₹10¹²; rate from 0% to 30%; years from 0 to 30 and months from 0 to 11, at least 1 month in all.
Assumptions
- A cumulative FD: interest stays in until maturity, at the same rate.
- Leftover months earn simple interest on the grown amount; banks count days, so results may differ by a few rupees.
- TDS, tax and premature withdrawal penalties are not included.
Worked examples by hand
The default: ₹1,00,000 at 7% for 5 years, quarterly. q = 20, L = 0. A = 1,00,000 × 1.0175²⁰ = ₹1,41,477.82; interest ₹41,477.82. Yield = 1.0175⁴ − 1 = 7.19%.
₹50,000 at 6.5% for 1 year 4 months, quarterly. T = 16, q = 5, L = 1. 50,000 × 1.01625⁵ = 54,195.71; × (1 + 0.065 ÷ 12) = ₹54,490.26.
₹10,000 at 4% for 5 years, yearly. A = 10,000 × 1.04⁵ = ₹12,166.53, the same as the CD calculator at 4% APY.
₹25,000 at 6% for 2 months, quarterly. q = 0, L = 2: A = 25,000 × (1 + 0.06 × 2 ÷ 12) = ₹25,250.
₹2,00,000 at 7.2% for 1 year, monthly. A = 2,00,000 × 1.006¹² = ₹2,14,884.83; yield 7.44%.
Other questions people ask
How is FD interest calculated?
For a cumulative FD, interest is added to the deposit at each compounding period: A = P × (1 + r ÷ m)^q, where m is the periods in a year and q the whole periods in the tenure. ₹1,00,000 at 7% for 5 years compounded quarterly is 1,00,000 × 1.0175²⁰ = ₹1,41,477.82.
How often do banks compound FD interest?
Terms differ between banks and deposits, so pick the compounding your bank states; the calculator starts at quarterly. Monthly compounding earns a little more than quarterly at the same rate.
What happens with a tenure that is not a whole number of quarters?
The calculator compounds the whole periods, then pays simple interest for the months left over. ₹50,000 at 6.5% for 1 year and 4 months is 5 quarters plus 1 month. Banks count the days of that broken period, so their figure can differ by a few rupees.
What is the effective yield of an FD?
It is what the rate earns in one full year with compounding: (1 + r ÷ m)^m − 1. A 7% FD compounded quarterly yields 7.19% a year.
Does the result include tax?
No. The calculator shows interest before any income tax or tax deducted at source (TDS), and before any penalty for closing the deposit early.
How is an FD different from a CD?
Both lock a deposit for a fixed term at a fixed rate. A US CD is usually quoted as an APY, which already includes compounding, while an FD is quoted as a yearly rate with a compounding period. At yearly compounding the two give the same result.