FD Calculator
Estimate fixed deposit maturity and compare two FD options side by side.
Option A
Option A result
Principal: ₹0
Rate: 0.00%
Tenure: 0 months
Interest earned: ₹0
Maturity amount: ₹0
Effective return: 0.00%
Option B
Option B result
Principal: ₹0
Rate: 0.00%
Tenure: 0 months
Interest earned: ₹0
Maturity amount: ₹0
Effective return: 0.00%
FD rate comparison
Estimates will appear as you enter valid inputs.
| Comparison | Option A | Option B |
|---|---|---|
| FD name | Option A | Option B |
| Deposit amount | See result card | See result card |
| Annual rate | See result card | See result card |
| Tenure | See result card | See result card |
| Interest earned | See result card | See result card |
| Maturity amount | See result card | See result card |
Maturity difference: ₹0
Interest difference: ₹0
Higher estimated maturity: —
How fixed deposit interest is calculated
A fixed deposit invests a lump sum for a selected tenure at an agreed annual rate. For a cumulative FD, the estimate uses P(1 + r/n)^(n×t), where interest is reinvested at the selected frequency. A non-cumulative FD is estimated using simple interest, with periodic interest paid instead of being added to the maturity principal.
Cumulative versus non-cumulative FDs
Cumulative FDs pay the principal and accumulated interest at maturity. Non-cumulative FDs pay interest monthly, quarterly, half-yearly, or annually, so the interest is not reinvested in this estimate.
Worked example
A ₹1,00,000 cumulative deposit at 7% for 12 months with quarterly compounding is estimated using four compounding periods. Changing the rate, tenure, amount, or payout option recalculates the result immediately.
Frequently asked questions
Does this show current bank rates?
No. Enter the rate quoted by the bank for the specific product and customer category.
Are taxes included?
No. TDS, income-tax treatment, premature-closure penalties, and bank-specific rounding are not included.
How should I compare two banks?
Enter comparable deposits, tenures, payout choices, and verified rates. The comparison is a mathematical estimate, not financial advice.