Skip to content

How-to guide

How to Calculate FD: Formula, Steps & Examples

Learn how to calculate FD — the formula explained step by step, with worked examples and a free calculator to check your answer.

By Aarav Mehta, CFA, MBA Finance · Updated Jun 2026 · 2 min read

Calculating your maturity value is straightforward once you know the FD formula and what each input means. This guide explains the method in plain language, walks through a manual calculation, and gives worked examples you can follow — then you can do it instantly with the FD Calculator.

What is FD?

The FD calculation tells you your maturity value from a few simple inputs. The figure you are solving for here is the maturity value, expressed in INR.

The FD formula

This calculation combines several inputs through a multi-step method rather than a single one-line formula. Enter the values below and the calculator resolves each step in order. The inputs it needs are:

  • Deposit amount — a money amount. Example: ₹1,00,000.
  • Interest rate (p.a.) — a percentage, such as an annual rate. Example: 7%.
  • Tenure — a value you set on the slider. Example: 5 years.
  • Compounding frequency — one of: Yearly, Half-yearly, Quarterly, Monthly. Example: Quarterly.

How to calculate it step by step

  • Write down the deposit amount (for example, ₹1,00,000).
  • Write down the interest rate (p.a.) (for example, 7%).
  • Note the tenure (for example, 5 years).
  • Choose the compounding frequency (for example, Quarterly).
  • Apply the formula above to get your maturity value.
  • Double-check the result with the FD Calculator.

Worked examples

Example 1

Input / OutputValue
Deposit amount₹1,00,000
Interest rate (p.a.)7%
Tenure5 years
Compounding frequencyQuarterly
Maturity value₹1,41,478
Principal₹1,00,000
Interest earned₹41,478

With deposit amount of ₹1,00,000, interest rate (p.a.) of 7%, tenure of 5 years and compounding frequency of Quarterly, the maturity value works out to ₹1,41,478.

Example 2

With deposit amount of ₹2,00,000, interest rate (p.a.) of 7%, tenure of 5 years and compounding frequency of Quarterly, the maturity value works out to ₹2,82,956.

ResultValue
Maturity value₹2,82,956
Principal₹2,00,000
Interest earned₹82,956

Example 3

With deposit amount of ₹50,000, interest rate (p.a.) of 7%, tenure of 5 years and compounding frequency of Quarterly, the maturity value works out to ₹70,739.

ResultValue
Maturity value₹70,739
Principal₹50,000
Interest earned₹20,739

Tips for an accurate result

  • Keep your units consistent — mixing, say, months with years or grams with kilograms is the most common source of error.
  • Round only at the very end. Rounding inputs early can shift the final answer noticeably.
  • Re-run the numbers whenever an input changes, rather than estimating from an old result.
  • Annual rates must be converted to the period you are calculating for (for example, divide an annual rate by 12 for a monthly figure).

Prefer not to do the maths by hand? — the FD Calculator does it instantly, for free, with the formula and a worked example built in.

Continue exploring finance calculators with these tools: SIP Calculator, EMI Calculator, CAGR Calculator, Effective Annual Rate (EAR) Calculator, RD Calculator.

Calculators in this guide

Frequently asked questions

Gather each input, apply the formula step by step keeping your units consistent, and round only at the end. You can verify your answer instantly with the FD Calculator.

It uses the standard formula with exact arithmetic, so the result is correct for the inputs you enter. Bear in mind that real-world outcomes can still differ when underlying assumptions change.

The maturity value is expressed in INR. Make sure your inputs use matching units so the result is correct.

CAGR Table: Duration by Initial value

Reference table of duration for CAGR across a range of initial value values — exact, engine-computed figures you can read off at a glance.

1 min read

Aarav Mehta · CFA, MBA Finance

Aarav reviews every finance formula on CalcHub for accuracy.