Lumpsum Investment Calculator
Enter the amount, expected return and period to see the future value of a lumpsum investment.
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Lumpsum Investment Calculator by TheCalcTools
How the Lumpsum Investment Calculator works
A lumpsum compounds once a year at the assumed return: FV = P × (1 + r)^years.
Investing a lumpsum all at once beats spreading it out when markets rise steadily, but carries the risk of investing just before a fall. Many investors split large sums with a systematic transfer plan.
The formula
Worked example
Using the default values shown in the calculator:
| Amount invested | $500000 |
|---|---|
| Expected annual return | 12 % |
| Period (years) | 10 |
| Inflation (for today's value) | 6 % |
- 500,000 at 12% for 10 years becomes $1,552,924.
- That is a gain of $1,052,924; it doubles every 6.1 years.
Result:
| Estimated value | $1,552,924 |
|---|---|
| Estimated gain | $1,052,924 |
| In today's money | $867,145 |
| Years to double at this return | 6.1 |
Frequently asked questions
Is lumpsum better than SIP?
With the same total money and steady rising returns a lumpsum grows more, because it is invested for longer. A SIP reduces timing risk and suits monthly income.
Sources and further reading
- Investor.gov (U.S. SEC): Compound interest and investing basics
- SEBI investor education: Mutual funds
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This calculator gives estimates for information only. It is not financial advice, and your lender's or provider's figures will govern. Rates, fees and rules vary. See our disclaimer.