How the Lumpsum Calculator Works
This calculator applies compound growth to a single upfront investment over your chosen period, using your expected annual return rate.
Enter the amount you plan to invest as a lumpsum, the annual return rate you expect, and the number of years you intend to stay invested.
You'll see the invested amount, the estimated returns generated, and the total value of your investment at the end of the period, along with a year-by-year growth breakdown.
Benefits of Lumpsum Investing
- Full amount compounds from day one: unlike a SIP, your entire investment starts earning returns immediately instead of being phased in over months or years.
- Simple to manage: a single transaction with no recurring instalments, mandates, or monthly tracking required.
- Well-suited for windfalls: ideal when you receive a bonus, maturity payout, inheritance, or other one-time surplus you want to put to work right away.
- Can outperform SIP in rising markets: since the full amount is invested upfront, a lumpsum benefits more than a SIP when markets trend steadily upward over your investment period.
Formula Used
The calculator uses the standard compound interest formula, compounded annually:
FV = P × (1 + r)^n- FVFuture value of your investment
- PLumpsum principal amount invested
- rExpected annual rate of return
- nInvestment period in years
Example Calculation
Suppose you invest a one-time amount for 10 years, expecting a 12% annual return.
- Total Investment100,000
- Expected Return Rate12% p.a.
- Investment Period10 years
- Total Value ≈ 311,000 (Invested: 100,000, Returns: ≈ 211,000)
Important Assumptions
- Returns are assumed to compound annually at a constant rate for the entire period — actual mutual fund returns are never fixed and fluctuate with the market.
- This calculator doesn't account for fund fees, exit charges, or capital gains tax.
- The invested amount is assumed to stay fully invested for the whole period, with no partial withdrawals.
Frequently Asked Questions
Guides & Articles
SIP vs FD: Which Is Better for You in 2026?
A ₹10,000 monthly SIP at 12% can reach ₹99.91 lakh in 20 years, against ₹52.14 lakh in a 7% recurring deposit. But SIPs carry market risk and FDs do not. Here is how to choose, with returns, tax and a simple split by goal.
How Much SIP Is Needed for ₹2 Crore?
At 12% a year, about ₹20,017 a month for 20 years builds ₹2 crore. Here is the exact SIP amount for every time frame, how step-up SIP lowers it, and what ₹2 crore will really be worth after inflation.