toolcubbyFD Calculator
Find the maturity amount and interest earned on a fixed deposit with compounding.
How to use
- Enter the principal amount you are depositing.
- Set the annual interest rate offered by the bank.
- Enter the tenure and choose the compounding frequency.
- Click Calculate FD to see the maturity amount and interest earned.
How FD maturity is calculated
Maturity = P × (1 + r/n)^(n×t) n = 4 for quarterly compounding
The calculation compounds interest on both the principal and previously accrued interest, so the maturity amount grows faster than simple interest.
FAQ
What is a fixed deposit?
An FD is a lump-sum deposit with a set tenure and rate. The interest compounds at the chosen frequency, and you get a known maturity amount.
How is the maturity amount calculated?
Maturity = P × (1 + r/n)^(n×t). For ₹1,00,000 at 6.5% quarterly for 5 years, the maturity is about ₹1,38,039.
Does compounding frequency change the result?
Yes. More frequent compounding (monthly, daily) yields slightly higher maturity for the same rate and tenure.