SIP calculator 2026
This SIP calculator projects what a monthly investment could grow to, using the standard SIP formula with each instalment invested at the start of the month. It works in rupees with lakh and crore formatting or in dollars, and adds an annual step-up, a goal planner, a lump sum comparison and a value in present-day money. As an example, 5,000 rupees a month for 10 years at an assumed 12 percent a year grows to 11,61,695 rupees.
Calculate your SIP
Results update as you type. Sliders and typed values use the same limits.
Your SIP results
The formula with your numbers
Invested vs projected value
Year-end values across the period.
Final value mix
Money put in and estimated returns.
SIP vs lump sum
| Plan | Total invested | Projected value | Gain |
|---|
Year-by-year breakdown
| Year | Monthly SIP | Total invested | Returns | Year-end value | In present-day money |
|---|
How this calculator works
A SIP, or systematic investment plan, invests a fixed amount at regular intervals, usually monthly. Each instalment compounds for the months left until the end of the plan. Adding up all the instalments gives the standard SIP formula, which Groww prints on its calculator:
M = P × [((1 + i)n − 1) ÷ i] × (1 + i)
M is the maturity value, P the monthly instalment, n the number of monthly instalments and i the monthly rate. The last factor, (1 + i), is there because each instalment is invested at the start of its month. In annuity terms this is an annuity due; without that factor it is an ordinary annuity, with each payment at the end of the month (CalculatorSoup gives both forms as equations 2.1 and 2.2). This calculator uses the beginning of the month by default and offers end of month as an option.
The monthly rate comes from the annual return r and the compounding frequency nc:
i = (1 + r ÷ nc)nc ÷ 12 − 1
With monthly compounding this is simply r ÷ 12, so 12 percent a year gives 1 percent a month. With quarterly compounding at 7 percent it is 1.01751/3 − 1 = 0.5800 percent a month. Yearly compounding gives (1 + r)1/12 − 1, which is the effective-rate method Groww describes: 12 percent becomes 0.9489 percent a month. This follows the equivalent-rate rule CalculatorSoup uses when payments and compounding run on different schedules.
Other parts of the model:
- Initial lump sum: grows for the full period, L × (1 + i)n, and is added to the SIP value.
- Zero return: the formula would divide by zero, so the value is the sum of the instalments plus the lump sum.
- Negative return: allowed down to −20 percent a year; the value then ends below the amount invested.
- Step-up: the monthly amount rises by the step-up percentage at the start of each new year and the increase compounds (5,000, then 5,500, then 6,050 at 10 percent). Each instalment is compounded on its own.
- Present-day value: projected value ÷ (1 + inflation)years.
- Lump sum comparison: the same total that the SIP invests, put in on day one at the same rate.
- Goal planner: the monthly SIP needed = (target − lump sum × (1 + i)n) ÷ value of a SIP of 1 over the same period, with the same step-up.
The year-by-year table is built month by month and the headline uses the same loop, so the two always agree. Values are rounded only for display.
Worked example
The calculator opens with 5,000 rupees a month, no lump sum, 10 years, a 12 percent assumed return, monthly compounding and each instalment at the start of the month. The monthly rate is 12 ÷ 12 = 1 percent and there are 120 instalments:
M = 5,000 × [(1.01120 − 1) ÷ 0.01] × 1.01 = ₹11,61,695.38
You invest 6,00,000 rupees, so the estimated return is 5,61,695 rupees. At 5.54 percent inflation that value is worth about 6,77,519 rupees in present-day money. The first year ends at 64,047 rupees.
Changing one input at a time shows how each setting works:
- End of month instead of beginning: ₹11,50,193.
- Yearly compounding (the Groww method): ₹11,20,179.
- A 10 percent annual step-up: the SIP reaches 11,790 rupees a month in year 10, you invest 9,56,245 rupees and the projection is ₹16,87,163.
- Investing the same 6,00,000 rupees as a lump sum on day one: ₹19,80,232.
- Goal planner, 50 lakh in 15 years: about 9,909 rupees a month, or 5,758 rupees in year 1 with a 10 percent step-up.
In dollars, 500 dollars a month for 10 years at 12 percent comes to $116,169.54 with beginning-of-month instalments and $115,019.34 with end-of-month instalments.
What each input means
- Currency: rupees use Indian grouping (1,00,000 is one lakh and 1,00,00,000 is one crore). Dollars use standard grouping. The maths is the same.
- Monthly SIP amount: the instalment in year 1. Typed amounts and the slider both run from 0 to 5,00,000 (500,000 in dollars).
- Target amount (goal planner): the value you want at the end. Tick the box if the target is in present-day money and the calculator grows it by the inflation rate first.
- Initial lump sum: money invested on day one, up to 1,00,00,000.
- Investment period: whole years from 1 to 50.
- Annual step-up: 0 to 25 percent a year. Use 0 for a flat SIP.
- Expected annual return: your assumption, from −20 to 30 percent. The presets set 6, 10 or 12 percent and are illustrations only.
- Compounding frequency: how the annual rate turns into a monthly rate. Monthly is r ÷ 12.
- Instalment timing: beginning of month (the standard SIP formula) or end of month.
- Inflation rate: used only for the present-day value. It switches between the latest India and US CPI readings when you change currency, unless you have typed your own figure.
SIP rules in India: what SEBI and AMFI say
Mutual funds in India are regulated by the Securities and Exchange Board of India (SEBI). The Association of Mutual Funds in India (AMFI) describes a SIP as a plan in which a fixed amount is invested at regular intervals and debited automatically from the bank account. According to AMFI, the minimum instalment is 500 rupees a month, or 250 rupees under the Chhoti SIP option, and under SEBI guidelines a monthly SIP is treated as discontinued after three consecutive failed instalments.
SEBI investor education material (Introduction to mutual funds investing) lists monthly, quarterly and half-yearly SIP intervals on fixed dates, explains that direct plans have a lower expense ratio than regular plans because no distributor commission is paid, and describes the riskometer, which places each scheme on one of six risk levels from low to high. Equity funds are described as volatile and high risk. None of these costs or risks appear in a fixed-rate projection, so read a scheme information document before investing.
Limitations
- The return is fixed for the whole period. Fund returns vary from year to year and can be negative.
- Expense ratios, exit loads, stamp duty and tax on gains are not deducted.
- Instalments are monthly only, and the period is in whole years.
- The inflation default is one 12-month reading applied to every year.
- Results are illustrations from your inputs, not a forecast for any fund.
SIP calculator FAQs
How is SIP return calculated?
Each monthly instalment grows at the monthly rate i for the months it stays invested. Adding them up gives M = P x [((1 + i) to the power n, minus 1) / i] x (1 + i), where P is the monthly amount and n the number of months. The final (1 + i) applies because a SIP instalment is invested at the start of each month. With monthly compounding, i is the annual return divided by 12, so 12 percent a year gives i = 1 percent.
Why is my answer different from Groww?
Groww converts the annual return into an effective monthly rate, (1 + annual rate) to the power 1/12, minus 1, which is about 0.9489 percent for 12 percent. This calculator uses 12/12 = 1 percent when compounding is monthly. For 1,000 a month for one year at 12 percent, that gives 12,809.33 here against about 12,766 on Groww. Choose Yearly compounding on this page to reproduce the Groww method.
Should I choose beginning or end of month?
Beginning of month is the default because a SIP debit usually happens on a fixed date and the money is invested from that day, and the standard SIP formula includes the extra (1 + i) factor for this. End of month treats each instalment as invested a month later. At 5,000 a month for 10 years at 12 percent, the result is 11,61,695 at the beginning and 11,50,193 at the end.
What is a step-up SIP?
A step-up SIP raises the monthly amount by a fixed percentage once a year, usually to keep pace with a rising salary. In this calculator the increase compounds: with 5,000 and a 10 percent step-up, the SIP is 5,500 in year 2 and 6,050 in year 3. Over 10 years at 12 percent this plan invests 9,56,245 and is projected to reach 16,87,163, against 11,61,695 with no step-up.
How does the goal planner work?
Choose Goal planner, enter the amount you want and the number of years, and the calculator finds the first-year monthly SIP needed at your assumed return. Because the future value rises in direct proportion to the monthly amount, it divides the target, less what any lump sum will grow to, by the future value of a SIP of 1. A target of 50 lakh in 15 years at 12 percent needs about 9,909 a month.
Is a lump sum better than a SIP?
At a fixed positive return, a lump sum invested on day one always ends higher, because all the money is invested for longer. The comparison table shows that gap. Real fund prices rise and fall, so the outcome depends on the path of the market. A SIP spreads purchases across many dates, and many people invest monthly because that is when they have income to invest.
What does value in present-day money mean?
It divides the projected value by (1 + inflation) raised to the number of years, to show roughly what it would buy at the start date. The default for rupees is 5.54 percent, the all-India CPI inflation rate for September 2026 from MoSPI, and for dollars 3.7 percent, the US CPI-U change for the 12 months to September 2026 from the Bureau of Labor Statistics. Both are single readings, so try other values.
Does this calculator include tax, expense ratio or exit load?
No. The return you enter is applied in full each month. Mutual fund schemes charge an expense ratio, which is lower in direct plans than in regular plans according to SEBI investor education material, some charge an exit load on early redemption, and gains can be taxed. Enter a lower return to allow for costs, and check the scheme information document of the fund.
What is the minimum amount for a SIP?
AMFI states that the minimum SIP instalment is 500 rupees a month, or 250 rupees under the Chhoti SIP option. Individual schemes can set higher minimums. This calculator accepts any amount from 0 so that you can also model dollar plans or other recurring investments.
How we check this calculator
On November 7, 2026 we read the calculator code and ran ten reference cases from an independent Python model on the live page, including end and beginning of month, a lump sum, quarterly and yearly compounding, a negative return and a zero return. All matched to within one rupee or dollar, and the first-year rows matched to the cent. The previous version converted every rate with the effective-annual method, so the compounding menu changed nothing and monthly results were below those of the standard formula. It also used end of month as the default and showed slider ranges that differed from its error messages. All of these are fixed. We review the inflation defaults after each monthly CPI release from MoSPI and BLS.
Revision history: November 7, 2026, corrected the monthly rate and compounding conversion, made beginning of month the default, added rupee and dollar formats, step-up, goal planner, lump sum comparison, present-day value, the formula with your numbers, worked example and FAQ; previous edition September 22, 2026.
Related: compound interest calculator, future value calculator, inflation calculator, pension calculator, Vanguard Total Stock Market Index Fund, ETFs to watch in 2026, how to invest in the stock market, all calculators.
Sources: Groww, SIP calculator formula; CalculatorSoup, future value of an annuity; AMFI, mutual fund and SIP basics; SEBI, introduction to mutual funds investing; MoSPI, CPI press release for September 2026; BLS, Consumer Price Index news release.
This calculator gives an educational estimate from the figures you enter, using the formulas cited above as of November 7, 2026. It is not investment, tax or financial advice. See our disclaimer.
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