SIP Calculator
Estimate what your monthly mutual fund investment could grow into. Adjust the amount, expected return and time frame to see your projected wealth. Choose a currency to view results in your local format; the tool shows figures in the currency you pick and does not apply exchange-rate conversion.
What a SIP calculator actually tells you
A SIP calculator is a small tool that answers one honest question: if I invest a fixed amount every month, what could it become over time? SIP stands for Systematic Investment Plan: the habit of investing a set sum into a mutual fund on the same date each month, regardless of whether the market is up or down. The calculator takes three things you decide (how much, for how long, and the return you expect) and projects the future value of that discipline.
It is not a promise. Markets don’t return the same percentage every year. What the calculator does well is show the shape of long-term investing: how a modest monthly habit, left alone, can quietly outgrow the money you actually put in. That gap between what you invest and what you end up with is the point.
The one idea worth keeping: in the early years most of your total is money you deposited. In the later years, most of it is growth on growth. Compounding rewards patience far more than it rewards a big starting amount.
How the SIP calculator works
Each monthly instalment is treated as a separate investment that then compounds until the end of your chosen period. Because your first instalment grows for the full term and your last instalment grows for only a month, the tool sums up every instalment’s growth using the standard future-value formula for a series of equal payments.
The formula behind it
FV = P × ({[1 + i]n − 1} ÷ i) × (1 + i)- FV: the maturity value you’re solving for.
- P: your monthly investment amount.
- i: the monthly rate of return, i.e. your annual expected return divided by 12 (and by 100 to turn a percent into a decimal).
- n: the total number of instalments (years × 12).
You never have to touch this yourself; the calculator above runs it instantly as you drag the sliders. Knowing it exists just helps you trust the number rather than take it on faith.
A worked example
Say you invest ₹5,000 a month for 10 years and assume a 12% annual return. Over 120 months you deposit ₹6,00,000 of your own money. At maturity the projection lands near ₹11.5 lakh, meaning the growth portion (roughly ₹5.5 lakh) is almost as large as everything you put in. Stretch the same SIP to 20 years and the deposited amount doubles to ₹12 lakh, but the projected corpus climbs to about ₹49.5 lakh. Time, not the monthly figure, does most of the heavy lifting.
How to use the calculator above
- Monthly investment: the fixed amount you can commit every month without straining your budget. Starting small and staying consistent beats starting big and stopping.
- Expected return rate: an annual estimate. Equity mutual funds are often modelled around 10 to 12%, debt funds lower. Use a figure you can defend, not the best year you ever heard about.
- Time period: the number of years you intend to stay invested. This is the single input that changes the outcome most.
- Yearly step-up: switch this on if you plan to raise your SIP a little each year as your income grows. Even a 10% annual increase can meaningfully lift the final corpus.
Step-up SIP vs a regular SIP
A regular SIP keeps the same monthly amount for the entire term. A step-up SIP (sometimes called a top-up SIP) raises that amount by a set percentage every year, which mirrors how salaries usually rise. The extra contributions arrive earlier than they would if you simply invested more later, so they get more time to compound. If your earnings are likely to grow, enabling the step-up gives a more realistic (and usually larger) projection.
What the projection can’t guarantee
The calculator assumes a steady, constant rate of return. Real markets deliver that average through a bumpy mix of strong years and weak ones. Two things follow from that:
- Your actual maturity value will differ from the estimate, sometimes by a wide margin over short periods.
- The estimate ignores expense ratios, exit loads and taxes, which trim real-world returns. Treat the output as a planning guide, not a statement of account.
Quick comparison: regular SIP vs step-up SIP
| Feature | Regular SIP | Step-up SIP |
|---|---|---|
| Monthly amount | Stays fixed | Rises each year by a set % |
| Best suited to | Stable or limited income | Rising income over time |
| Effect on corpus | Steady growth | Larger final corpus for the same start |
| Effort | Set once, forget | Automated increase, still hands-off |
Frequently asked questions
What is a SIP calculator?
It’s a tool that estimates the future value of a Systematic Investment Plan. You enter your monthly amount, an expected annual return and how many years you’ll invest, and it projects both the total you’ll have deposited and the growth on top.
How much SIP should I do?
There’s no universal number. Start with a goal (a down payment, a child’s education, retirement), work backwards to the corpus you need, then use the calculator to find the monthly amount and time frame that reach it. Commit only what you can sustain every month.
Is the calculated return guaranteed?
No. Mutual fund returns are market-linked and vary year to year. The calculator uses a fixed assumed rate to model an average outcome, so treat the result as an informed estimate rather than a fixed promise.
What return rate should I enter?
Use a conservative long-term estimate. Many people model equity funds around 10 to 12% per year and debt funds lower. A realistic figure gives a projection you can actually plan around.
Does the calculator account for tax?
No. It projects gross growth and doesn’t deduct capital gains tax, expense ratios or exit loads. Your real, in-hand amount at maturity will be somewhat lower.
Disclaimer: This SIP calculator is for informational and educational purposes only. Mutual fund investments are subject to market risks. The figures shown are estimates based on the inputs you provide and do not constitute financial advice. Consult a qualified advisor before investing.