SIP
SIP Calculator
Estimate how monthly investments can grow at an assumed annual return. Add an optional yearly step-up if you plan to increase the installment.
What is SIP?
A Systematic Investment Plan (SIP) invests a fixed amount at a regular interval, usually every month, into a mutual fund or similar product. The idea is to keep the decision simple: pick an amount you can sustain, invest it on a schedule, and let compounding work on the growing balance.
How SIP works
Each installment buys units at that day’s price. When prices are lower, the same rupee amount buys more units; when prices are higher, it buys fewer. Over a long stretch this averaging effect can reduce the impact of investing everything at one market level.
This calculator does not use live NAVs. It converts your expected annual return into a monthly rate and compounds the growing balance. That is useful for planning, not for predicting a specific fund.
SIP formula
FV = P × [((1 + r)^n − 1) / r] × (1 + r)
P is the monthly investment, r is the monthly expected return (annual rate ÷ 12), and n is the number of months. The extra (1 + r) treats contributions as being invested at the start of each month.
Example calculation
Suppose you invest ₹10,000 every month for 10 years and assume 12% a year. The invested amount is ₹12,00,000. Using monthly compounding and beginning-of-month contributions, the estimated value is about ₹23,23,391. The difference is estimated returns, not a promised profit.
SIP vs lumpsum
A lumpsum invests the full amount immediately, so the entire principal compounds for the whole period. A SIP invests gradually, so early installments compound longer than later ones. If you already have a corpus ready to invest and are comfortable with the timing, compare both calculators with the same assumed return. If you earn monthly and want a habit, SIP usually matches cash flow better.
Benefits of SIP
SIPs are useful when you want discipline without timing the market, when money arrives monthly, and when you want to raise the amount as income grows. They do not remove market risk, and skipping installments or stopping after a fall can undo the averaging benefit.
Important considerations
Expense ratios, exit loads, taxes and contribution pauses are not built into the numbers. Very high assumed returns can make a plan look easier than it is. Use a rate you could still live with if markets are weaker than the long-run average.
Frequently asked questions
Does this SIP calculator show guaranteed returns?
No. The result is a mathematical projection using the return rate you type in. Mutual fund NAVs move every day, so actual values can be higher or lower.
Should I use the expected return before or after tax?
Use a rate that matches the question you are asking. For a rough wealth estimate many people use a pre-tax assumed return. For take-home planning, lower the rate to reflect tax and fund expenses.
What does the step-up percentage do?
It increases the monthly installment once a year. A 10% step-up on a ₹10,000 SIP becomes ₹11,000 in year two, ₹12,100 in year three, and so on.
Is SIP better than a lumpsum investment?
It depends on cash flow and market timing. SIP spreads purchases over time. A lumpsum invests everything on day one. The two calculators let you compare the same assumed return; they cannot predict which path will do better in a live market.
Can I model a quarterly or weekly SIP?
This version models monthly contributions, which is the usual Indian SIP frequency. Convert a quarterly amount to a monthly equivalent if you need a rough comparison.
Related calculators
- Lumpsum CalculatorProject the growth of a one-time investment at an expected annual return.
- Goal SIP CalculatorWork backwards from a target corpus to the monthly SIP needed at an assumed return.
- Step-up SIP CalculatorProject SIP growth when the monthly installment increases once a year.
- SWP CalculatorSee how monthly withdrawals affect a corpus at an assumed return, and whether the money lasts.
Browse the full directory on the calculators page.
Related guides
- What is SIP?A clear explanation of systematic investment plans, what they do and what they do not guarantee.
- How SIP worksHow monthly installments buy units, how compounding applies, and how a SIP calculator models growth.
- SIP vs LumpsumWhen monthly investing and a one-time investment are different — and when a calculator cannot settle the debate.
SmartCalculators provides educational calculators and estimates. Results are for informational purposes only and should not be considered financial, tax, investment, legal or professional advice.