SIP Calculator

Enter what you invest each month, the return you expect and how long you will keep going. The calculator shows what you would put in, what it could grow to, and how the two diverge year by year.

Monthly investment

₹

Expected return (per year)

An assumption, not a promise. Try a lower figure too.

Investment period (years)

Increase my SIP every yearA step-up raises the instalment on each anniversary, as your income rises.

Total value

₹11,61,695

Estimated returns

₹5,61,695

Amount invested

₹6,00,000

Returns as a share of the total

48%

Invested vs returns

Invested: ₹6,00,000 (51.6%)
Returns: ₹5,61,695 (48.4%)

Year by year

Year by year
Year	Invested to date	Value	Gain
1	₹60,000	₹64,047	₹4,047
2	₹1,20,000	₹1,36,216	₹16,216
3	₹1,80,000	₹2,17,538	₹37,538
4	₹2,40,000	₹3,09,174	₹69,174
5	₹3,00,000	₹4,12,432	₹1,12,432
6	₹3,60,000	₹5,28,785	₹1,68,785
7	₹4,20,000	₹6,59,895	₹2,39,895
8	₹4,80,000	₹8,07,633	₹3,27,633
9	₹5,40,000	₹9,74,108	₹4,34,108
10	₹6,00,000	₹11,61,695	₹5,61,695

Total value

₹11,61,695

₹6,00,000 invested

This is a projection from the return you assume, not a forecast and not a promise. Market returns are not fixed and not guaranteed, and a real portfolio will not deliver the same percentage every year even if it averages it.

What it is:: A calculator for a systematic investment plan: a fixed amount invested every month.
What it calculates:: The total invested, the estimated gain and the projected value at the end, plus a year-by-year breakdown.

Assumptions

Instalments are invested at the start of each month.
The return you enter is assumed to repeat every month, which no real market does.
No exit load, expense ratio, transaction cost or tax is deducted.
Capital gains tax on redemption is not modelled.

How it works

A SIP invests a fixed amount on the same date every month. Each instalment buys units at that day's price, so you accumulate units steadily instead of committing everything at one price.

The calculator treats each instalment as invested at the start of its month, which is how a SIP actually behaves: the money is debited on the SIP date and buys units immediately. The first instalment therefore earns a full month's return.

The monthly rate used is the annual rate divided by 12. This is the convention every Indian SIP calculator uses. It is not the effective monthly equivalent of the annual rate, which would be slightly lower.

The headline figures are read off the same month-by-month simulation that builds the yearly table, so the summary and the table can never disagree.

The step-up option raises the instalment by a fixed percentage on each anniversary, which is what most people can actually do as their income rises. It is off by default.

Formula

FV = P x [((1 + i)^n - 1) / i] x (1 + i)

FV: = future value of the SIP
P: = amount invested each month
i: = monthly return = annual return / 12 / 100
n: = number of monthly instalments

The trailing (1 + i) is what makes this a start-of-month calculation. Drop it and you get the end-of-month version, which is smaller by exactly one month's growth. At 0% the formula collapses to FV = P x n.

Example calculation

₹5,000 a month for 15 years, assuming 12% a year

Total invested: ₹9,00,000
Estimated returns: ₹16,22,880
Value at the end: ₹25,22,880
Returns as a share of the total: 64%
The same total invested on day one instead: ₹49,26,209

Frequently asked questions

Is the projected value guaranteed?

No. It is arithmetic applied to a return you chose. Equity mutual funds are not capital-protected and can fall, including over multi-year periods. Treat the figure as a planning aid, not a forecast.

What return should I assume?

Use a figure you can defend and then test lower ones. The point of the calculator is to see how sensitive the answer is: run 10%, 12% and 14% and notice how far apart they land over 20 years. If the plan only works at the top number, it is not a plan.

Does this account for expense ratio and exit load?

No. Enter a return you expect after costs if you want a net figure. A 12% gross return in a fund charging 1% works out closer to 11% in your hands.

Why does another SIP calculator give a slightly different number?

Almost always because it assumes end-of-month instalments rather than start-of-month. The gap is one month's growth on the whole corpus, which looks large over a long period but comes from a timing assumption, not a different formula.

What does the step-up option do?

It increases your instalment by the percentage you set on each anniversary, so a 10% step-up takes a ₹5,000 SIP to ₹5,500 in year two. Since your income usually rises too, it often reflects reality better than a flat instalment held for 20 years.

Is SIP better than investing a lump sum?

Neither is universally better. A lump sum invested earlier is exposed to growth for longer, which helps when markets rise. A SIP spreads the entry price, which helps when they fall or move sideways first. The honest answer is that a SIP suits money you earn monthly, and a lump sum suits money you already have.