Frequently Asked Questions
Everything you need to know about the FD Calculator.
How does the FD calculator work?
Enter your principal, interest rate, tenure, and compounding frequency; it computes your maturity value using the compound interest formula.
What compounding frequencies are supported?
Monthly, quarterly (the most common for bank FDs), half-yearly, and yearly.
Is it free?
Completely free, no sign-up or limits.
Why does compounding frequency matter if the interest rate is the same?
More frequent compounding means interest is calculated on interest more often, giving a slightly higher effective yield than the nominal rate suggests โ the calculator shows this clearly.
What's the difference between cumulative and non-cumulative FDs?
Cumulative FDs reinvest interest so it compounds; non-cumulative FDs pay out interest periodically without compounding. Select the mode that matches your FD type for an accurate result.
Can I enter tenure in months instead of years?
Yes, tenure supports years plus months for shorter-term deposits.
Does it show the calculation formula?
Yes, the compound interest formula and your substituted values are shown alongside the result.
What is effective annual yield?
The actual annualized return accounting for compounding frequency, which can be slightly higher than the nominal quoted rate.
Is my data stored?
No; everything runs in your browser and isn't stored or sent.
Does it work on mobile?
Yes, fully responsive.