Use this free online SIP (Systematic Investment Plan) calculator to estimate the future value of your monthly mutual fund investments. Enter your monthly investment amount, expected annual return rate, and investment period to instantly see your total invested amount, estimated returns, and maturity value.
How to Use the SIP / Investment Calculator
Enter the amount you plan to invest every month in the "Monthly Investment (₹)" field.
Enter the return you expect your investment to earn in the "Expected Annual Return Rate (%)" field.
Enter how long you intend to keep investing in the "Investment Period (years)" field.
Click "Calculate" to view your Total Invested amount, Estimated Returns, and Total Value (Maturity Amount).
How the SIP Projection Works
A SIP invests a fixed amount every month, so each instalment has a different amount of time to grow: the first one compounds for the full period and the last one for just a month. The calculator converts your annual return to a monthly rate (annual ÷ 12), grows every instalment at that rate, and adds them together. It assumes each instalment is invested at the start of the month and that the return is the same every month, which real markets never deliver.
Worked Example: ₹10,000 a Month for 15 Years
At an assumed 12% a year, the monthly rate is 1%. Over 180 months you invest ₹18,00,000, and the projected value is about ₹50,45,760, so roughly ₹32,45,760 comes from returns. The assumed rate makes a big difference: the same SIP projects to about ₹34.8 lakh at 8%, ₹41.8 lakh at 10% and ₹61.3 lakh at 14%.
Why Starting Early Matters
Projected value of a ₹5,000 monthly SIP at an assumed 12% a year:
Years
Amount invested
Projected value
5
₹3,00,000
₹4,12,432
10
₹6,00,000
₹11,61,695
15
₹9,00,000
₹25,22,880
20
₹12,00,000
₹49,95,740
25
₹15,00,000
₹94,88,175
30
₹18,00,000
₹1,76,49,569
Investing ₹5,000 a month for 30 years and ₹10,000 a month for 15 years both put in ₹18 lakh, but the longer SIP projects to about ₹1.76 crore against about ₹50.5 lakh. Time in the market does more of the work than the amount.
Reading the Result Realistically
Returns from equity mutual funds are not guaranteed and vary from year to year. Use a conservative rate, and look at a range of rates rather than a single figure. Past performance shown on fund factsheets does not predict future returns.
The projection is before tax and before inflation. Gains on mutual fund units are taxed when you redeem them, with rates depending on the type of fund and how long each unit was held; check current rules on the Income Tax Department website. To see what the final amount is worth in today's money, discount it for inflation with the Present Value calculator.
The expense ratio of the fund is already reflected in its returns, so a direct plan with a lower expense ratio earns a little more than the regular plan of the same fund over time.
Many investors raise their SIP each year as income grows (a step-up SIP). This calculator keeps the amount fixed, so a step-up plan would end with more than shown.
Frequently Asked Questions
It uses the standard SIP future value formula for monthly compounding: FV = P × [((1+r)^n - 1) / r] × (1+r), where P is your monthly investment, r is the monthly return rate (annual rate ÷ 12 ÷ 100), and n is the total number of months (investment period × 12). Estimated Returns is simply the future value minus your total invested amount.
When the expected annual return rate is 0, the calculator simply multiplies your monthly investment by the number of months, since there is no compounding growth to add.
There is no correct number, because future returns are unknown. A cautious approach is to plan with a rate below the long-run past returns of the fund category you are considering, and to check how the result changes at a few lower and higher rates. Debt funds and hybrid funds generally warrant lower assumptions than equity funds.
Your statement reflects the actual NAV on each purchase date and today's NAV, so it captures the real ups and downs of the market. The calculator assumes a smooth, constant return. To measure the return you actually earned, look at the XIRR figure on your statement or platform.
A SIP suits regular monthly income and spreads purchases across market levels, which reduces the risk of investing everything at a peak. If you already have a large sum, a lump sum can earn more when markets rise steadily, but carries more timing risk. Many investors stagger a lump sum over a few months for that reason.