SIP Calculator

A SIP (systematic investment plan) puts a fixed amount into a mutual fund every month. Over long periods the returns on earlier instalments start earning returns of their own, which is why a 15 or 20 year SIP ends up far above the money you put in. This page shows that split plainly: invested, estimated returns and final value, with a chart of your money (black) and returns (grey) for each year.

The method is the one most Indian SIP calculators use. Each instalment is counted at the start of the month, so it earns one month of return in the month it is paid. For a flat SIP the formula is FV = P x ((1 + i)^n - 1) / i x (1 + i), where P is the monthly SIP, i is the monthly rate and n is the number of months. With ₹10,000 a month at 12% for 10 years, i is 1% and the result is ₹23,23,391 on ₹12,00,000 invested. Our self-check tests that case against the closed formula.

Calculators often disagree because of one choice: how a yearly return becomes a monthly one. Most divide by 12, so 12% becomes 1% a month, which compounds to about 12.68% a year. Others use the effective rate (1 + 12%)^(1/12) - 1, so a year is exactly 12%. The same ₹10,000 for 10 years then gives ₹22,40,359. Both options are in More options, so you can match the calculator your bank or app uses and see the gap. A lumpsum compounds at the same monthly rate. Choose the effective rate to match lumpsum calculators that compound once a year, where ₹1,00,000 at 12% for 10 years becomes ₹3,10,585.

Step-up (also called top-up) raises the SIP by a fixed percentage once every 12 months. A ₹10,000 SIP with a 10% step-up pays ₹23,579 a month in year 10. Over 10 years at 12% it grows to ₹33,74,326, against ₹23,23,391 without the step-up. The table lists the SIP for every year, so you can see whether the later amounts fit your budget.

Goal mode works backwards. Type a target such as ₹1 crore, the years and the expected return, and the page solves for the starting monthly SIP, taking any step-up and lumpsum into account. Tick the inflation box to say the goal is in today's money, for example a college fee that costs ₹20 lakh now. The page grows it by your inflation rate first, then finds the SIP for that larger figure. In the other mode the same box shows what the final value is worth in today's money.

Your amounts and plans stay in this browser tab. Nothing you type is sent to TaskNinja, saved or logged, and there is no account. We only count anonymous events, such as the calculator being used or a CSV being downloaded, never the rupee figures.

Returns are not guaranteed. Mutual fund investments are subject to market risks, and past performance is not a guarantee of future returns. The return you type is your assumption, not a forecast, and real returns move up and down from year to year. AMFI asks fund houses to keep calculator illustrations between 2% and 13% a year, with the assumed rate shown, and that is a fair range to test. We do not show fund names or fund returns. Figures are before tax, exit load and stamp duty. Read the scheme documents, or talk to a SEBI-registered adviser, before you invest.