SIP Calculator
Calculate how your monthly SIP investments grow with compound returns over time.
How to use
- Enter your monthly SIP amount.
- Enter the expected annual return and number of years.
- Click Calculate to see your invested amount, gains, and total value.
Estimates only — not financial advice. Actual returns vary and past performance does not guarantee future results. Verify important decisions with a qualified professional.
What Is a SIP Calculator?
A SIP calculator projects how a fixed monthly investment, made automatically month after month, could grow under compound returns. SIP stands for Systematic Investment Plan — an investing method, popularized in India and now used worldwide, in which you invest the same amount on the same date every month, typically into a mutual fund or index fund, regardless of whether the market is up or down. This calculator shows the end value of that habit, and how much of it is growth rather than your own contributions.
The quiet genius of systematic investing is that it removes timing decisions. When prices fall, your fixed amount buys more units; when prices rise, it buys fewer — a pattern known as dollar-cost averaging (rupee-cost averaging in India). You never have to decide whether "now is a good time," and the plan keeps running through headlines that would scare a lump-sum investor into paralysis. The calculator assumes a steady return to make the projection; real markets will deliver that average unevenly, but the discipline the plan builds is the point.
How to Use the SIP Calculator
- Enter the amount you will invest every month.
- Enter the expected annual return of your investment (index funds have historically delivered high-single to low-double-digit annual returns over long periods, with wide variation).
- Enter the investment period in years.
- Click Calculate to see the projected value, the total you contributed, and the growth earned on top.
How the SIP Formula Works
Each monthly installment is treated as its own small investment that compounds for the months remaining in the plan. The future value is the sum of all those installments grown at the monthly rate: FV = P × [((1 + i)^n − 1) ÷ i] × (1 + i), where P is the monthly amount, i is the monthly return (annual rate divided by 12), and n is the number of months. Because later installments have less time to grow, the earliest contributions do the heaviest lifting — one more reason starting now beats starting bigger later.
Tips for Systematic Investors
- Lengthen the horizon before raising the amount: an extra five years typically adds more than a modest increase in the monthly sum.
- Increase the installment when income rises (many providers call this a step-up SIP) — it keeps the plan painless and the endpoint growing.
- Judge performance over full market cycles, not months. A SIP looks worst exactly when it is buying most cheaply.
Is a SIP better than investing a lump sum?
Statistically, a lump sum invested immediately often wins because markets rise more often than they fall, and the money is fully invested sooner. A SIP wins on behavior and practicality: most people invest from monthly income anyway, and the automatic structure keeps them investing through downturns instead of waiting for a perfect moment that never announces itself.
What return rate should I assume?
Use a conservative figure for the asset you are buying — for diversified equity funds, many planners model 8–12%, while debt funds would be much lower. The projection assumes that exact return every year, which never happens in reality; treat the output as an illustration of compounding, not a forecast.
Can I start a SIP with a small amount?
Yes — that is one of its main attractions. Many fund providers allow monthly investments starting with the equivalent of a few hundred rupees or a modest dollar amount through brokerage auto-invest features. The calculator shows that even a small amount, sustained over 15–20 years, grows into a meaningful sum.
Does this calculator include fees or taxes?
No. Fund expense ratios quietly reduce the effective return (you can model that by lowering the return rate slightly), and taxes on gains depend on your country and holding period. The projection is deliberately gross so the compounding picture stays clear.