SIP Calculator
A SIP calculator estimates the future value of monthly mutual-fund investments based on the amount, expected annual return and time period, showing how much you invest and how much it can grow.
Last updated 2026-08-14
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quizExample
How this calculator works, with real numbers (no JavaScript needed):
Inputs
- Monthly investment
- 10000
- Expected annual return
- 12
- Investment period
- 10
- Annual step-up
- 0
Results
- Expected maturity value
- ₹23,00,386.89
- Total amount invested
- ₹12,00,000
- Estimated returns
- ₹11,00,386.89
functionsThe formula
A SIP (Systematic Investment Plan) is a way to invest a fixed amount in mutual funds every month. Because you buy units regularly at whatever the fund's price is, you naturally buy fewer units when prices are high and more when they are low — this "rupee cost averaging" smooths out market ups and downs.
How the calculation works
Each monthly contribution earns returns until the end of the period, and those returns compound. The future value of a series of equal monthly payments is:
FV = P × [((1 + r)ⁿ − 1) / r] × (1 + r)
- P — your monthly investment
- r — monthly return = expected annual return ÷ 12 ÷ 100
- n — number of months
If you enable a step-up, your monthly contribution increases by that percentage each year — a common strategy that lets small starting amounts grow into large savings as your income grows.
Worked example
Invest ₹10,000 every month for 10 years expecting 12% annual returns:
- r = 0.01, n = 120
- FV = 10,000 × [(1.01¹²⁰ − 1) / 0.01] × 1.01 ≈ ₹23,23,391
You invest ₹12,00,000 in total and earn roughly ₹11,23,391 in returns. With a 10% yearly step-up, the maturity value roughly doubles compared to a flat SIP over the same period.
Important caveat
SIPs invest in the market, so returns are not guaranteed. The 12% default is an expectation, not a promise. Equity funds can fall short of (or beat) that figure depending on the market — this calculator helps you plan, but past performance never guarantees future results.
helpFrequently asked questions
question_markWhat is a SIP calculator?
A SIP calculator estimates the future value of regular monthly investments based on your contribution, expected annual return and investment period. It shows how much you invest and how much it might grow.
question_markHow is SIP return calculated?
SIP returns are compounded monthly. The future value of equal monthly payments is FV = P × [((1 + r)ⁿ − 1) / r] × (1 + r), where r is the monthly return and n is the number of months.
question_markWhat is a step-up SIP?
A step-up (or top-up) SIP increases your monthly investment by a set percentage every year, so your savings grow along with your income.
question_markAre SIP returns guaranteed?
No. SIPs invest in mutual funds and returns depend on market performance. Use the expected return as a planning assumption, not a promise.