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How-to guide

How to Calculate NPS: Formula, Steps & Examples

Learn how to calculate NPS — 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 total corpus at 60 is straightforward once you know the NPS 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 NPS Calculator.

What is NPS?

The NPS calculation tells you your total corpus at 60 from a few simple inputs. The figure you are solving for here is the total corpus at 60, expressed in INR.

The NPS 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:

  • Monthly contribution — a money amount. Example: ₹5,000.
  • Expected return (p.a.) — a percentage, such as an annual rate. Example: 1%.
  • Current age — a value measured in years. Example: 30 years.
  • Annuity return (p.a.) — a percentage, such as an annual rate. Example: 6%.

How to calculate it step by step

  • Write down the monthly contribution (for example, ₹5,000).
  • Write down the expected return (p.a.) (for example, 1%).
  • Write down the current age (for example, 30 years).
  • Write down the annuity return (p.a.) (for example, 6%).
  • Apply the formula above to get your total corpus at 60.
  • Double-check the result with the NPS Calculator.

Worked examples

Example 1

Input / OutputValue
Monthly contribution₹5,000
Expected return (p.a.)1%
Current age30 years
Annuity return (p.a.)6%
Total corpus at 60₹1,13,96,627
Total invested₹18,00,000
Lump sum at 60 (60%)₹68,37,976
Monthly pension (40% annuity)₹22,793

With monthly contribution of ₹5,000, expected return (p.a.) of 1%, current age of 30 years and annuity return (p.a.) of 6%, the total corpus at 60 works out to ₹1,13,96,627.

Example 2

With monthly contribution of ₹10,000, expected return (p.a.) of 1%, current age of 30 years and annuity return (p.a.) of 6%, the total corpus at 60 works out to ₹2,27,93,253.

ResultValue
Total corpus at 60₹2,27,93,253
Total invested₹36,00,000
Lump sum at 60 (60%)₹1,36,75,952
Monthly pension (40% annuity)₹45,587

Example 3

With monthly contribution of ₹2,500, expected return (p.a.) of 1%, current age of 30 years and annuity return (p.a.) of 6%, the total corpus at 60 works out to ₹56,98,313.

ResultValue
Total corpus at 60₹56,98,313
Total invested₹9,00,000
Lump sum at 60 (60%)₹34,18,988
Monthly pension (40% annuity)₹11,397

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 NPS 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, FD Calculator, Effective Annual Rate (EAR) Calculator.

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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 NPS 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 total corpus at 60 is expressed in INR. Make sure your inputs use matching units so the result is correct.

Aarav Mehta · CFA, MBA Finance

Aarav reviews every finance formula on CalcHub for accuracy.