This lumpsum calculator estimates what a one time investment could grow to at an assumed yearly return. You can also add a monthly SIP alongside it, which is how many people invest: a bonus or savings put in at once, plus a regular amount from salary. The result shows the value from the lumpsum, the value from the SIP and the total.
Remember that a fund's return is not fixed. A lumpsum is exposed to the market from day one, so its result depends heavily on when you invest and what the market does next.
At a glance
- Lumpsum formulaValue = amount × (1 + r)^years
- Example₹1 lakh at 12% for 10 years: ₹3,10,585
- With ₹5,000 SIP added₹14,72,280 in total
- Doubling time at 12%About 6 years
- Main riskTiming: all the money enters at one price
- ReturnAn assumption, not a promise
How the lumpsum calculator works
A lumpsum grows by compounding once a year at the rate you type: value = amount × (1 + r)^years. ₹1,00,000 at 12% for 10 years becomes ₹3,10,585, a little over three times the money.
If you add a monthly SIP, the calculator treats it the way the SIP calculator does, with each instalment growing for the months that remain, and adds the two results. Put ₹1 lakh in once, add ₹5,000 monthly, assume 12% over a decade, and you get ₹3,10,585 from the lumpsum and ₹11,61,695 from the SIP, a total of ₹14,72,280 on ₹7 lakh invested.
One time investment over different periods
| Investment | Return | Years | Estimated value |
|---|---|---|---|
| ₹1,00,000 | 12% | 10 | ₹3,10,585 |
| ₹5,00,000 | 12% | 15 | ₹27,36,783 |
| ₹2,00,000 | 10% | 20 | ₹13,45,500 |
The rule of 72 gives a quick feel: at 12% money doubles in about 6 years, at 10% in about 7. These are averages over long periods; a fund can lose value in any single year.
SIP vs lumpsum: which suits you
If you already have the money, investing it all at once gives it the most time in the market, and over long periods markets have more often gone up than down. But if prices fall soon after you invest, a lumpsum takes the full hit. A SIP spreads purchases over months, so you buy more units when prices are low and fewer when they are high.
- Lumpsum suits money that can stay invested for many years, or debt funds where prices move less.
- SIP suits monthly savings and investors who worry about timing.
- Staggered lumpsum: park the sum in a liquid or low risk fund and move it in over 6 to 12 months through a systematic transfer plan.
The one time sip calculator above lets you test both together.
Lumpsum plus SIP: a practical plan
Many investors start a SIP and add lumpsums when they get a bonus or sell something. Run the sip and lumpsum calculator with your expected bonus as the lumpsum and your regular saving as the SIP. Then try a lower return to see a cautious figure. If your goal is in today's rupees, compare it with the SIP with inflation page.
To plan regular withdrawals from a lumpsum later in life, see the SWP calculator. To check what return a past lumpsum actually earned, use the CAGR mode of the CAGR calculator.
Costs and taxes on a lumpsum
The return you type should be after the fund's expense ratio. A 1% yearly expense ratio on ₹1 lakh over 10 years costs about ₹26,600 at a 12% gross return; the mutual fund returns calculator shows that gap. Gains are taxed when you sell, with different rules for equity and debt funds and for short and long holding periods. Exit loads may apply if you sell soon after investing. Check the fund's scheme documents and current tax rules before you decide.
Mutual funds are subject to market risk. This lumpsum calculator shows estimates only and does not recommend any fund. A SEBI registered investment adviser can help with personal advice.
Frequently asked questions
How does a lumpsum calculator work?
It grows your one time amount at the yearly return you choose: value = amount × (1 + r)^years. ₹1 lakh at 12% for 10 years gives ₹3,10,585.
Can I combine lumpsum and SIP in one calculation?
Yes. Type the lumpsum and the monthly SIP. The calculator shows the value of each part and the total.
Is lumpsum better than SIP?
Money put in at once works longer, yet it carries the risk of a badly timed entry. A SIP spreads the risk. Neither wins in every market.
What will ₹5 lakh become in 15 years?
Growing at 12% yearly, roughly ₹27.4 lakh. Ten percent would give near ₹20.9 lakh; the market decides the actual figure.
Should I invest a lumpsum in an equity fund all at once?
Some investors spread it over 6 to 12 months to reduce timing risk. A SEBI registered adviser can help decide based on your situation.
Are taxes taken out in this one time calculator?
No. It shows pre tax values. Tax hinges on fund category and holding period.