Fixed Deposit (FD) Calculator
Calculate bank Fixed Deposit (FD) maturity value, quarterly compounding interest, and senior citizen bonus rates.
Client-side calculations and instant parameter controls are initializing. All processing occurs securely in your browser.
How to Use the Fixed Deposit (FD) Calculator
- 1 Enter the Fixed Deposit investment amount.
- 2 Enter the annual interest rate offered by your bank.
- 3 Select the tenure duration in months or years.
- 4 Toggle "Senior Citizen Rates" (+0.50%) if applicable.
- 5 View instant maturity value and total interest earned.
Mathematical Formula & Principle
Maturity Amount = P × (1 + r/4)^(4 × t) (Quarterly Compounding Standard)
Calculations are performed with IEEE floating point mathematical precision directly in your device memory.
Worked Examples
1-Year Bank FD
Standard Indian bank quarterly compounding credited 4 times a year.
Senior Citizen 3-Year FD
Includes the additional 50 basis points senior citizen benefit.
Frequently Asked Questions
- Do senior citizens get higher FD interest rates?
- Yes, most banks in India provide an additional 0.50% (50 basis points) interest rate for depositors aged 60 and above.
- Is FD interest taxable?
- Yes, FD interest is added to your total income and taxed according to your applicable income tax slab.
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