Use this free online SIP calculator to estimate the future value of a systematic investment plan with fixed monthly contributions. Enter the monthly amount, expected annual return, and tenure in years. The tool returns projected corpus, total invested, and estimated gain. No signup is required.
A SIP, or systematic investment plan, is the India-style habit of investing a fixed sum into mutual fund units on a recurring schedule, usually monthly. This SIP calculator models that recurring cash flow with month-by-month compounding, which is different from a single lump-sum compound interest problem. Returns are assumed and constant in the model. Real mutual fund NAVs move up and down, so treat every result as an illustration, not a promise.
Find related tools under investment and savings calculators. Compare a one-time deposit path on the compound interest calculator, review simple gain metrics on the ROI calculator, adjust purchasing power with the inflation calculator, and contrast bank-style deposits on the FD calculator.
What a SIP calculator estimates
The primary output is future value of the contribution stream at the assumed rate. Total invested equals monthly amount times number of months. Estimated gain is future value minus total invested. Those three figures answer the planning question people ask before starting or stepping up a monthly SIP: if contributions and returns followed this smooth path, what corpus might appear at the horizon?
How to use the calculator
- Enter the monthly SIP contribution in your currency units.
- Enter an assumed annual return percentage for the illustration.
- Enter the investment tenure in years.
- Read future value, amount invested, and gain.
- Repeat with a lower return assumption to stress-test the plan.
How Multicalify calculates SIP future value
Monthly rate r equals annual percent divided by 12 and by 100. Number of months n equals years times 12. Future value uses the annuity-due style series built into the live Multicalify SIP tool: FV = P × ((1 + r)^n − 1) / r × (1 + r), where P is the monthly contribution. When r is zero, FV collapses to P times n. Total invested is P times n, and gain is FV minus invested. That compounding-on-contribution pattern is why SIP math differs from parking one lump sum for the entire tenure.
Worked SIP example
Invest 10,000 every month for 10 years at an assumed 12 percent annual return. Here P is 10,000, r is 0.01, and n is 120. The Multicalify SIP calculator future value is about 2,323,390.76. Total invested is 1,200,000. Estimated gain is about 1,123,390.76. Change the rate to 8 percent or 10 percent to see how sensitive the corpus is to the return assumption.
| Item | Value |
|---|---|
| Monthly SIP | 10,000 |
| Assumed annual return | 12% |
| Tenure | 10 years (120 months) |
| Approx. future value | 2,323,390.76 |
| Total invested | 1,200,000 |
| Approx. gain | 1,123,390.76 |
SIP versus lump-sum compound interest
Lump-sum compound interest grows one deposit for the full period. A SIP adds fresh principal every month, so early contributions compound longer than later ones. That is why you should not paste a lump-sum formula onto a monthly SIP and expect the same answer. Use the compound interest calculator when you already have a corpus to invest once. Stay on this SIP calculator when money arrives from salary in recurring installments.
Return assumptions, inflation, and goals
Illustrative returns of 8, 10, or 12 percent are planning inputs, not forecasts. Equity-oriented funds can swing widely year to year even when long averages look smooth. After you have a nominal corpus estimate, run the inflation calculator to sense purchasing power at the goal date. For a quick performance ratio on a completed investment, the ROI calculator is a simpler gain versus cost view without SIP scheduling.
Step-ups, pauses, and real fund behavior
Many investors raise SIP amounts when income rises. This Multicalify tool models a flat monthly amount for the whole tenure. If you plan step-ups, run separate segments or average a higher contribution for a conservative sketch. Pausing SIPs, redeeming early, exit loads, expense ratios, and tax on gains are outside the core FV formula. Mutual fund results also depend on the scheme you choose, which this calculator does not select for you.
Choosing a contribution size you can sustain
A SIP works only if the debit clears month after month. Start from essential expenses and an emergency buffer, then pick a contribution that survives lean months. Running the SIP calculator at that sustainable amount is more useful than modeling an aggressive figure you will pause after a quarter. If income is variable, model a base SIP plus an occasional top-up as a separate lump-sum on the compound interest calculator rather than pretending every month will match your best month.
Tenure matters as much as the monthly amount. Extending from 8 years to 12 years at the same contribution changes both invested capital and compounding time. Use two tenure inputs side by side before you lock a goal date for education, a home down payment, or retirement top-ups.
Equity, hybrid, and debt fund illustrations
People often reuse one return assumption for every category. Equity-oriented illustrations may use higher assumed rates with wider uncertainty. Debt-oriented illustrations usually use lower assumed rates with different risk. This SIP calculator will happily accept either number. Your job is to pick an assumption that matches the fund category you are studying and to run a downside case, not to chase the highest corpus on the screen.
Common mistakes
- Treating the assumed return as a guaranteed rate
- Comparing SIP FV directly to a lump-sum FV without matching cash flow timing
- Ignoring inflation when the goal is a future purchase price
- Using tenure in years but mentally treating n as years instead of months
- Forgetting that total invested is simply contribution times months
Limitations and investment disclaimer
This SIP calculator provides educational estimates only. It is not investment advice, a mutual fund offer, or a prediction of NAV performance. Markets can deliver returns far above or below your assumption, including losses. Tax rules for capital gains and dividends depend on jurisdiction and product. Confirm choices with scheme documents and a qualified adviser when needed.
Related calculators
Stress-test lump sums on the compound interest calculator, measure simple returns on the ROI calculator, adjust for price level changes with the inflation calculator, and compare deposit style growth on the FD calculator. Browse the investment and savings category for more planning tools.
Conclusion
A disciplined SIP calculator workflow turns a monthly contribution, rate assumption, and tenure into a clear corpus sketch. Enter realistic numbers, read invested capital versus gain, and compare a second return rate before you commit. Keep the tool handy when you change contribution size, and remember that live mutual fund results will not follow a straight line.