Assumes a constant annual return compounded monthly - real equity returns vary year to year, so treat the maturity figure as a projection, not a promise. Step-up raises your monthly amount once every 12 months (a 10% step-up turns ₹10,000 into ₹11,000 in year two). Gains from equity funds are taxable; returns shown are pre-tax. Not investment advice.
Calculate Your SIP Returns
The Tools Kit’s free SIP Calculator projects what a monthly systematic investment plan in a mutual fund grows into. Enter your monthly SIP amount, an expected annual return, and the number of years, and it shows the total you will invest, the estimated gains, and the maturity value. Add an annual step-up to see what raising your SIP each year does to the final corpus.
For example, ₹10,000 a month for 10 years at an assumed 12% return builds about ₹23.2 lakh from ₹12 lakh invested, so roughly ₹11.2 lakh of the corpus is compounding gains. Every figure is a pre-tax projection at a constant return, worked out in your browser.
How to Use the SIP Calculator
- 1
Enter your monthly SIP amount
Type the amount you plan to invest each month, in rupees. Commas are fine, so 10,000 and 10000 work the same way.
- 2
Set the expected annual return
Enter the yearly return you want to assume, as a percentage. 12% is a common long-run planning figure for diversified equity funds, but it is an assumption, not a promise.
- 3
Choose the investment duration
Enter how many years you will keep the SIP running. Part-years are rounded to the nearest whole month.
- 4
Add an annual step-up (optional)
Enter the percentage by which you will raise the SIP every 12 months, or leave it at 0 for a flat SIP.
- 5
Read the projection
Total invested, estimated gains, and maturity value update instantly as you type, in rupees with lakh and crore grouping.
There is no signup and no limit on how many scenarios you try. Results appear once the monthly amount is above zero and the duration is at least one month.
SIP Formula: How Maturity Value Is Calculated
A SIP is a series of equal monthly payments, so its future value is an annuity calculation. This calculator treats each instalment as invested at the start of its month (an annuity due) and compounds it monthly at the annual return divided by 12. For a flat SIP that works out to:
FV = P × [((1 + i)n − 1) ÷ i] × (1 + i)
- P — the monthly SIP amount
- i — the monthly rate: expected annual return ÷ 12 ÷ 100
- n — the number of monthly instalments: years × 12
Worked example: ₹10,000 a month at 12% for 10 years gives i = 0.01 and n = 120. (1.01)120 is about 3.3004, so FV = 10,000 × (2.3004 ÷ 0.01) × 1.01 ≈ ₹23,23,391. You invested ₹12,00,000, so the estimated gains are ₹11,23,391. If you prefer to check the arithmetic by hand, the percentage calculator is handy for working out what share of the corpus is gains (about 48% here).
This start-of-month convention is the one most fund-house SIP calculators use. A calculator that assumes end-of-month payments drops the final × (1 + i) and shows about ₹23.0 lakh for the same inputs, which is why two SIP return calculators can disagree by a small amount.
SIP Returns Over 10, 15, and 20 Years
The longer a SIP runs, the larger the share of the corpus that comes from compounding rather than your own contributions. At an assumed 12% return:
| Monthly SIP and duration | Total invested | Maturity value |
|---|---|---|
| ₹5,000 for 20 years | ₹12,00,000 | ₹49,95,740 |
| ₹10,000 for 10 years | ₹12,00,000 | ₹23,23,391 |
| ₹10,000 for 15 years | ₹18,00,000 | ₹50,45,760 |
| ₹10,000 for 20 years | ₹24,00,000 | ₹99,91,479 |
Notice the first two rows: the same ₹12 lakh invested produces about ₹23.2 lakh over 10 years but about ₹50 lakh over 20 years at half the monthly amount. Time in the market matters more than the size of each instalment, which is the main argument for starting a SIP early and not stopping it during a market dip. The compound interest calculator shows the same effect for a single lump sum.
Step-Up SIP Calculator: Raising Your SIP Every Year
Most people’s salaries rise over time, so a fixed SIP gets smaller relative to income each year. A step-up SIP fixes that by increasing the monthly amount by a set percentage every 12 months. The increase compounds: with a 10% step-up, ₹10,000 becomes ₹11,000 in year two, ₹12,100 in year three, and so on.
- 10 years at 12%, 10% step-up: about ₹19.1 lakh invested, projecting to about ₹33.7 lakh, versus ₹23.2 lakh for a flat ₹10,000 SIP.
- 15 years at 12%, 10% step-up: about ₹38.1 lakh invested, projecting to about ₹86.8 lakh, versus ₹50.5 lakh for the flat SIP.
A practical way to set the step-up is to match it to your expected increment. If you have an offer letter or a revised package, the CTC to in-hand calculator shows how much monthly take-home pay you actually have to work with, and the income tax calculator for India shows how the new and old regimes affect it.
What the Projection Does Not Include
The calculator assumes one constant return for every month, which real mutual funds never deliver; equity returns swing from year to year and can be negative over short periods. The figures are also pre-tax: capital gains on mutual fund units are taxable when you redeem, and the calculator does not deduct tax, exit loads, or anything else beyond the return you enter.
Inflation matters too. If prices rise around 6% a year, ₹23.2 lakh in 10 years buys roughly what ₹13 lakh buys today. The inflation calculator (based on US CPI data) illustrates how purchasing power erodes over time, and a simple way to plan in today’s money is to enter a lower return, such as your expected return minus expected inflation.
Common uses
- Estimating how much a ₹5,000 or ₹10,000 monthly SIP could be worth in 10, 15, or 20 years
- Working backward to the monthly SIP needed for a goal such as a child’s education or a home down payment
- Comparing a flat SIP with a step-up SIP before setting up the mandate
- Testing how sensitive a retirement corpus is to a lower or higher assumed return
- Balancing a new SIP against existing loan EMIs, alongside the EMI calculator
For more planning tools, browse all calculator tools on The Tools Kit.
SIP terms explained
| Term | What it means here |
|---|---|
| SIP (systematic investment plan) | Investing a fixed amount in a mutual fund at a regular interval, usually monthly, instead of all at once |
| Instalment | One monthly SIP payment; the amount you enter in the monthly investment field |
| Expected return (% p.a.) | The yearly growth rate you assume; the calculator divides it by 12 to get the monthly rate |
| Step-up / top-up SIP | A SIP whose monthly amount rises by a fixed percentage every year, usually in line with salary increments |
| Total invested | The sum of every instalment you pay over the full duration, including stepped-up amounts |
| Estimated gains | Maturity value minus total invested: the growth produced by compounding |
| Maturity value / corpus | What the SIP is projected to be worth at the end of the duration, before tax |
| Rupee-cost averaging | Buying more fund units when prices are low and fewer when they are high, as a fixed monthly amount naturally does |
Frequently Asked Questions
Each monthly instalment compounds at one-twelfth of the annual return from the month it is invested. For a flat SIP that gives FV = P × [((1 + i)^n − 1) ÷ i] × (1 + i), where P is the monthly amount, i is the annual rate divided by 12, and n is the number of months. ₹10,000 a month for 10 years at 12% (i = 1%, n = 120) comes to about ₹23,23,391.
About ₹23.2 lakh at an assumed 12% annual return: ₹12 lakh of your own money plus roughly ₹11.2 lakh of estimated gains. Kept going for 15 years, the same SIP projects to about ₹50.5 lakh, and for 20 years to about ₹99.9 lakh.
At an assumed 12% return, ₹10,000 a month reaches just under ₹1 crore (about ₹99.9 lakh) in 20 years. ₹25,000 a month gets there much sooner, and adding an annual step-up shortens the time further. Change the duration in the calculator until the maturity value crosses your target.
A step-up (or top-up) SIP raises the monthly amount by a fixed percentage every year. With a 10% step-up, ₹10,000 becomes ₹11,000 in year two and ₹12,100 in year three. Over 10 years at 12%, that invests about ₹19.1 lakh and projects to about ₹33.7 lakh, against ₹23.2 lakh for a flat ₹10,000 SIP.
No. Mutual fund returns are not guaranteed and real equity returns vary from year to year, including negative years. The calculator assumes one constant return for the whole period, so treat the result as a planning projection, not a forecast.
Before tax. The maturity value and gains are pre-tax figures, and capital gains on mutual fund units are taxable in India when you redeem. The calculator does not deduct tax, exit loads, or fund expense ratios beyond whatever you build into the return you enter.
Calculators use slightly different conventions. This one treats each instalment as invested at the start of its month (annuity due) and uses a monthly rate of annual return ÷ 12, the convention most fund-house calculators use. A calculator that assumes end-of-month investment would show about ₹23.0 lakh instead of ₹23.2 lakh for ₹10,000 a month at 12% over 10 years.
They suit different situations. A SIP spreads your purchases across market levels (rupee-cost averaging) and matches how a salary arrives each month. A lump sum invested early has more time to compound and can finish higher in a steadily rising market. This calculator projects the SIP side; a compound interest calculator projects a single lump sum.
The maturity value equals the total invested and the estimated gains are zero, because nothing compounds. This is a quick way to see how much of a projected corpus comes from your own contributions.
The duration field takes years, and decimals are accepted. The calculator converts years to months and rounds to the nearest whole month, so 2.5 years is treated as 30 monthly instalments.
Yes. It is free with no signup, and every calculation runs in your browser, so the amounts you enter are not sent to a server.
Reviewed by Raja Jahangir · Last reviewed: October 2026
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How is SIP maturity value calculated?
SIP maturity value treats each monthly instalment as compounding at one-twelfth of the annual return from the month it is invested. Investing ₹10,000 a month for 10 years at an assumed 12% return builds about ₹23.2 lakh from ₹12 lakh invested, leaving roughly ₹11.2 lakh of gains. Returns are assumed constant and shown before tax.
What does an annual step-up do to a SIP?
A step-up raises the monthly SIP amount by a fixed percentage every 12 months. With a 10% step-up, a ₹10,000 instalment becomes ₹11,000 in year two and ₹12,100 in year three. Because later instalments are larger, both the total invested and the maturity value grow well beyond a flat SIP over the same period.
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