Fixed Deposit Calculator – Calculate FD Interest & Maturity Value

A fixed deposit (FD) is one of the most reliable and widely used investment options. Whether you’re saving for a short-term goal or building long-term financial security, an FD ensures safety, guaranteed returns, and peace of mind. But before you invest, you’ll naturally ask: How much will my deposit grow? How much interest will I earn? What will be the final maturity amount?

A Fixed Deposit Calculator helps you answer these questions instantly. By entering your deposit amount, interest rate, tenure, and compounding frequency, you can calculate the maturity value and total interest earned without doing manual math.

Why Use a Fixed Deposit Calculator?

Calculating FD returns manually can be tricky, especially when compounding is involved. A calculator makes life easier because:

• Saves Time: Get results instantly.
  
• Accuracy: No risk of calculation mistakes.
  
• Better Planning: Know exactly how much you’ll get on maturity.
  
• Comparison: Try different tenures, interest rates, and compounding frequencies to see which FD plan suits you best.
  

Whether you’re an individual, a parent planning for your child’s education, or a retiree looking for safe investments, this tool gives clear answers in seconds.

Input Parameters in the Calculator

To get an accurate FD calculation, you need to enter:

1. Principal Amount ($): The money you plan to deposit.
   
2. Annual Interest Rate (%): The rate offered by the bank or financial institution.
   
3. Tenure (Months): The duration for which the money will remain deposited.
   
4. Compounding Frequency: How often the interest is added to the deposit (monthly, quarterly, half-yearly, or annually).
   

Formula for Fixed Deposit Calculation

The maturity value of an FD is calculated using the compound interest formula:

A = P × (1 + r/n)^n×t

Where:

• A = Maturity amount (final value)
• P = Principal amount (your deposit)
• r = Annual interest rate (in decimal form, e.g., 7% = 0.07)
• n = Compounding frequency (e.g., 12 for monthly, 4 for quarterly, 1 for annually)
• t = Time in years (tenure in months ÷ 12)

Total Interest = Maturity Value – Principal Amount

How the FD Calculator Works (Step by Step)

1. Enter the Deposit Amount: Suppose you invest $10,000.
   
2. Input the Interest Rate: Let’s say 6% per annum.
   
3. Enter the Tenure: 24 months (2 years).
   
4. Select Compounding Frequency: Quarterly (4 times a year).
   
5. Calculate:
   
   • r = 0.06, n = 4, t = 2
     
   • A = 10,000 × (1 + 0.06/4)^(4×2)
     
   • A = 10,000 × (1.015)^8 ≈ $11,268
     
   • Total Interest = $11,268 – $10,000 = $1,268
     

Result:

• Principal Amount: $10,000
  
• Total Interest: $1,268
  
• Maturity Value: $11,268