ToolPilot
FD calculator
Estimate fixed deposit maturity using compound interest: principal, annual rate, tenure, and how often interest is compounded. See maturity, interest earned, and effective annual rate (EAR).
Inputs
₹5,00,000
Results
- Maturity amount
- ₹6,15,720
- Total interest earned
- ₹1,15,720
- Effective annual rate (EAR)
- 7.19% p.a.
Equivalent yearly growth from compounding at the stated nominal rate.
Principal vs interest
Share of maturity amount
How it works
Maturity uses the standard compound amount formula: A = P(1 + r/n)nt, where P is principal, r is the nominal annual rate in decimals, n is compounding periods per year, and t is time in years. Total interest is A − P. The effective annual rate is (1 + r/n)n − 1, the yearly equivalent yield from n compounding steps. At 0% interest, maturity equals principal.
FAQ
Does this match my bank's FD quote exactly?
Banks may use different day-counts, cut-off dates, and rounding. This tool is a planning estimate using the standard mathematical formula—not a binding quote.
What is effective annual rate (EAR)?
EAR is the annual growth rate you would earn if compounding happened once per year but produced the same end result as your bank's compounding frequency. It is higher than the nominal rate when compounding is more than yearly.
Is tax deducted at source (TDS) included?
No. Maturity and interest shown are before tax. FD interest may attract TDS and income tax as per your situation.
Can I model a monthly payout or cumulative FD?
This page models cumulative compounding to a single maturity. Monthly payout and other payout options need different cash-flow assumptions.