SIP Calculator
See what a monthly SIP could grow into. Enter how much you invest each month, for how long, and the yearly return you expect — the result, chart and year-by-year table update as you type.
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How to use this calculator
- Enter monthly investment — The amount debited every month.
- Enter investment period — How long you keep investing.
- Enter expected annual return — An assumption, not a promise. Equity funds are often modelled at 10–12%.
- Read the result — it updates as you type.
The formula used
FV = P × [ ((1 + i)n − 1) ÷ i ] × (1 + i)
- FV
- Final value of the SIP
- P
- Amount invested every month
- i
- Monthly return = annual return ÷ 12 ÷ 100
- n
- Number of monthly instalments (years × 12)
This is the standard future-value-of-an-annuity formula. The extra × (1 + i) at the end is there because a SIP instalment is paid at the start of each month, so every instalment earns one additional month of growth. Indian fund houses use the same convention, which is why the result here matches the SIP calculators on AMC websites.
If you set the return to 0%, the formula would divide by zero, so in that case the calculator simply adds up your instalments.
Worked example
Suppose you invest ₹10,000 every month for 10 years and expect 12% a year.
- Monthly investment (P)₹10,000
- Monthly rate (i)12 ÷ 12 ÷ 100 = 0.01
- Number of months (n)10 × 12 = 120
- (1 + 0.01)120 = 3.300387
- (3.300387 − 1) ÷ 0.01 = 230.0387
- 230.0387 × ₹10,000 = ₹23,00,387
- ₹23,00,387 × 1.01 = ₹23,23,391
You would have invested ₹12,00,000 and ended with about ₹23,23,391 — roughly ₹11,23,391 of estimated returns.
What is a SIP, in plain language?
A Systematic Investment Plan is simply an instruction to invest a fixed amount on the same date every month. It is the opposite of trying to time the market: you buy a little every month, whatever the price.
Why the final number looks surprisingly large
Each instalment has a different amount of time to grow. Your first ₹10,000 compounds for the full ten years; the instalment you pay in the final month barely compounds at all. Added together, the early instalments do most of the heavy lifting — which is why starting earlier matters far more than investing slightly more.
Three things this calculator cannot know
- Real returns are bumpy. A fund that averages 12% might return −8% one year and +26% the next. The final value in real life will differ.
- Costs. If you want a more cautious figure, enter a return that is already reduced by the fund's expense ratio.
- Tax. The value shown is before tax. Use the Capital Gains Calculator to estimate what you keep.
A useful habit
Run the same numbers three times — at 8%, 10% and 12%. The gap between those results is the honest range of outcomes, and it is a much better basis for planning than a single figure.
Tips and common mistakes
Getting more out of it
- Run the same numbers at 8%, 10% and 12%. The spread between those three results is a more honest plan than any single figure.
- Increasing the period by two years usually adds more than increasing the monthly amount by ₹1,000 — try both and see which is easier for you.
Mistakes to avoid
- Treating the expected return as a promise. It is your assumption, and equity funds regularly return far more or far less in any single year.
- Comparing this figure with a fixed deposit maturity value. One is guaranteed and taxed yearly; the other is neither.
- Forgetting that the final amount is in future rupees. Put it through the Inflation Calculator to see what it actually buys.
Frequently asked questions
Is the SIP return guaranteed?
No. A SIP is a way of investing, not a product with a fixed rate. If the SIP goes into an equity mutual fund, the value can fall as well as rise. The percentage you enter is your own assumption.
Does this calculator match my fund house's SIP calculator?
It should, to within a few rupees. We use the same annuity-due formula with monthly compounding. Tiny differences come from rounding and from whether a fund counts the exact debit date.
What return percentage should I use?
There is no correct answer. Many people model equity funds at 10–12%, hybrid funds at 8–10% and debt funds at 6–7%. Whatever you pick, also try a figure two or three points lower to see the downside.
Should I increase my SIP every year?
If your income grows, increasing the instalment yearly makes a large difference. The Step-Up SIP Calculator shows exactly how much difference.
What happens if I stop the SIP early?
The amount already invested keeps growing, but no new instalments are added. To model that, set the investment period to the number of years you actually invested, then use the Lump Sum Calculator on the resulting amount for the remaining years.
Does the calculator account for inflation?
No — the figure shown is in future rupees. To see what it is worth in today's money, put the result into the Inflation Calculator.
Related calculators
SIP where you increase the monthly amount every year.
Investment Lump Sum CalculatorGrowth of a one-time investment at an expected annual return.
Investment SIP vs Lump Sum CalculatorCompare investing monthly against investing all at once.
Investment Mutual Fund Goal CalculatorThe monthly SIP needed to reach a target amount.
Mutual Funds CAGR CalculatorCompound Annual Growth Rate between a start and end value.
Investment Inflation CalculatorWhat today’s money will be worth after inflation.
Tax & Inflation