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How-to guide

How to Calculate SIP: Formula, Steps & Examples

Learn how to calculate SIP — 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 SIP 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 SIP Calculator.

What is SIP?

Estimate the maturity value of your monthly SIP mutual-fund investments. The figure you are solving for here is the maturity value, expressed in INR.

The SIP 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 investment — a money amount. Example: ₹5,000.
  • Expected return (p.a.) — a percentage, such as an annual rate. Example: 12%.
  • Time period — a value you set on the slider. Example: 10 years.

How to calculate it step by step

  • Write down the monthly investment (for example, ₹5,000).
  • Write down the expected return (p.a.) (for example, 12%).
  • Note the time period (for example, 10 years).
  • Apply the formula above to get your maturity value.
  • Double-check the result with the SIP Calculator.

Worked examples

Example 1

Input / OutputValue
Monthly investment₹5,000
Expected return (p.a.)12%
Time period10 years
Maturity value₹11,61,695
Total invested₹6,00,000
Estimated returns₹5,61,695

With monthly investment of ₹5,000, expected return (p.a.) of 12% and time period of 10 years, the maturity value works out to ₹11,61,695.

Example 2

With monthly investment of ₹10,000, expected return (p.a.) of 12% and time period of 10 years, the maturity value works out to ₹23,23,391.

ResultValue
Maturity value₹23,23,391
Total invested₹12,00,000
Estimated returns₹11,23,391

Example 3

With monthly investment of ₹2,500, expected return (p.a.) of 12% and time period of 10 years, the maturity value works out to ₹5,80,848.

ResultValue
Maturity value₹5,80,848
Total invested₹3,00,000
Estimated returns₹2,80,848

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 SIP Calculator does it instantly, for free, with the formula and a worked example built in.

Continue exploring finance calculators with these tools: EMI Calculator, CAGR Calculator, FD 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 SIP 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.