A lumpsum investment means putting a large amount into an investment in one go, instead of spreading it over months like a SIP. People often invest a lumpsum when they receive a bonus, sell property or get a maturity amount from an older investment. The whole amount starts compounding from day one.
How to use the lumpsum calculator
- Enter the investment amount.
- Enter the expected yearly return.
- Choose the time period in years.
You will see the estimated final value and the gains. The year-wise breakdown shows the value at the end of every year.
Lumpsum formula
FV = P × (1 + r ÷ 100)^t- P = amount invested
- r = expected yearly return in %
- t = number of years
Example
You invest ₹1,00,000 once and leave it for 10 years at an assumed 12% yearly return.
- FV = 1,00,000 × (1.12)^10
- Estimated value = ₹3,10,585
- Estimated gains = ₹2,10,585
Growth over time
₹1,00,000 invested once at 12% a year:
| Years | Estimated value |
|---|---|
| 5 | ₹1,76,234 |
| 10 | ₹3,10,585 |
| 15 | ₹5,47,357 |
| 20 | ₹9,64,629 |
| 25 | ₹17,00,006 |
The rule of 72
To estimate how long money takes to double, divide 72 by the yearly return. At 12%, money doubles in about 72 ÷ 12 = 6 years. At 8%, it takes about 9 years. It is a quick mental check, not an exact figure.
Lumpsum vs SIP
Suppose you have ₹12 lakh to invest over 10 years at 12%. Investing it all today grows to about ₹37.27 lakh, while investing ₹10,000 a month for 10 years (the same ₹12 lakh in total) grows to about ₹23.23 lakh. The lumpsum wins on paper because the money is invested for longer. In real markets, investing everything at once also means taking the full risk of a market fall right after you invest. Many investors split a large amount across a few months to reduce that timing risk. You can compare with our SIP calculator.
Things to keep in mind
- Returns on mutual funds and shares are not fixed. The rate you enter is only an assumption.
- The result does not include taxes, fees or inflation.
- For fixed-return products such as bank deposits, the FD calculator handles quarterly compounding more precisely.
FAQ
What is the difference between lumpsum and SIP?
A lumpsum is a single one-time investment. A SIP invests a fixed amount every month. The same total amount invested as a lumpsum usually grows larger because it stays invested for longer, but it carries more timing risk.
Can I use this for stocks, gold or real estate?
Yes. The calculator works for any investment that grows at a steady yearly rate. Enter the average yearly growth you expect.
How do I find the return my past investment gave?
Use the CAGR calculator. Enter the starting value, the current value and the number of years.
Does the calculator account for inflation?
No. To see the value in today's money, you can subtract the expected inflation rate from the return. For example, a 12% return with 5% inflation gives a real return of roughly 7%.