Lumpsum Calculator
Compounding turns a single deposit into a much larger sum because every rupee of interest starts earning interest of its own. This lumpsum calculator projects the future value of money invested today at a fixed annual rate, so you can size a one-time investment against a goal and see how much of the final corpus comes from growth rather than your own deposit.
Enter values
Results
- Invested amount
- ₹10,00,000.00
- Estimated returns
- ₹23,00,386.89
- Total value
- ₹33,00,386.89
- Amount invested
- Market value
How is the Lumpsum calculated?
Set the amount you can invest as a one-time sum, enter the expected annual return and the years you plan to stay invested, then choose how often compounding is applied: yearly, half-yearly, quarterly or monthly. The calculator converts the annual rate into a rate per compounding period and applies it across every period up to the horizon. The projection table breaks the result into yearly rows showing the opening balance, the growth added that year and the closing balance.
Formula
A = P × (1 + i)^n where: P = the one-time amount you invest i = expected annual return ÷ 12 ÷ 100 n = number of months (years × 12) The monthly rate matches the convention used by the SIP calculator, so lumpsum and SIP projections on this site stay comparable.
Example
You put ₹10,00,000 into an equity fund expecting 12% a year and leave it alone for 10 years. The monthly rate is 12 ÷ 12 ÷ 100 = 0.01 and the term runs 120 months, so A = 10,00,000 × 1.01^120 ≈ ₹33,00,387. Your invested amount stays at ₹10,00,000, estimated returns come to about ₹23,00,387, and the money has roughly tripled. At an expected 8% the same sum finishes near ₹22,19,640, so the rate you assume matters almost as much as the amount you invest.
Things to remember
A lumpsum investment works best when you have capital today, a long horizon and the discipline to leave compounding untouched. Use this calculator to work out the one-time amount a goal needs, then stress-test the assumed return so the corpus you plan around is realistic rather than optimistic.
Frequently Asked Questions
How do you calculate lumpsum returns?
Compound the one-time amount at the expected monthly rate for every month of the term: A = P × (1 + i)^n, where i equals the annual return divided by 12 and by 100. Subtracting the invested amount from that final figure gives the return in rupees, which is what this calculator reports instantly.
Is lumpsum investing better than a SIP?
On a constant-return projection, yes — the entire amount earns from day one, so ₹10,00,000 invested at once finishes ahead of the same total spread across instalments. A SIP still wins on discipline and on buying cheaper units when markets fall, which no fixed-rate projection can capture.
What return rate should I enter for a mutual fund?
Equity funds have historically returned 10–14% a year over long periods and debt funds closer to 6–8%. Enter 10–12% for a diversified equity fund, treat anything above 14% as optimistic rather than expected, and rerun the projection with a lower figure before committing.
Is a lumpsum investment taxed when I redeem?
Yes. Equity fund gains held beyond a year are long-term capital gains taxed at 12.5% above the annual exemption, while shorter holdings attract 20%, and debt fund gains are added to your income at your slab rate. The capital gains calculator estimates what you actually owe.
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