Lump Sum Calculator
Estimate the future value of a one-time investment and its purchasing power.
How your one-time investment grows
Illustrative projection using the contribution timing and return convention selected above. Actual market returns vary.
View chart data
See a one-time investment in future and present-day money
A lump-sum projection estimates how an amount invested at the start might grow over a chosen period. It is useful for exploring a range of assumptions, but a constant-rate curve does not show market volatility or the possibility of loss. Leave monthly investment at zero for a pure lump sum, or add future contributions to model a combined plan.
A practical example
At an effective annual return of 12%, Rs 1 lakh becomes Rs 1.12 lakh after one year before taxes. This is a mathematical example, not an expected or assured return. Inflation reduces what that ending amount can purchase relative to today.
Calculation method and assumptions
Periodic growth rate = (1 + annual return)^(1 / periods per year) - 1The default convention treats the annual input as an effective annual return. The calculator uses 12 contribution periods for a monthly SIP and four for a quarterly SIP. It adds each contribution before or after growth according to your timing selection. An annual step-up begins after one complete year and may be a percentage or a fixed rupee increase. Alternatively, choose the nominal convention to divide the annual rate by the selected periods per year. No intermediate rounding is applied; displayed amounts are rounded.
Inflation and goal planning
Today's-money value equals future value divided by (1 + inflation) raised to the number of years. A goal stated in today's purchasing power is first inflated to the future date. The goal solver then deducts the projected lump-sum value and calculates the starting periodic investment needed, including the chosen step-up. These values do not account for taxes or variable market returns.
Lump Sum Calculator: Frequently Asked Questions
What is a lumpsum investment calculator?
It projects the value of an amount invested once at the start of a period. Investment amount, time and the assumed annual return determine the result. The projection is not a fund valuation or an assured maturity payment.
What could Rs 1 lakh invested for 10 years become?
At an illustrative effective annual return of 10%, Rs 1 lakh becomes about Rs 2,59,374 after 10 years with no additions or withdrawals. The projected gain is about Rs 1,59,374 before tax and other costs. Actual market performance can differ.
What is the difference between lump sum and SIP returns?
A lump sum is exposed to the market for the full period. Each SIP installment has a different investment date. Comparing only final balances without accounting for amounts and timing can be misleading.
Is the return entered here the same as a mutual fund CAGR?
Under the effective annual convention it represents a constant compound annual growth assumption. Historical fund CAGR can inform a scenario, but past performance is not a prediction of the future return on a new investment.
How much lump sum is needed for a future goal?
For a single investment with no later additions, divide the future target by (1 + annual return)^years under the effective annual convention. A goal expressed in today's money must first be adjusted for the assumed inflation.
More questions (5)
Does the lump sum result include capital gains tax?
No. It is an investment projection rather than an after-tax redemption quote. Tax treatment, exit loads and other charges depend on the investment and holding period and must be assessed separately.
Why is inflation-adjusted value lower than future value?
When assumed inflation is positive, future rupees buy less than current rupees. Dividing future value by the accumulated inflation factor expresses the result in today's purchasing power without changing the nominal account balance.
How is lump-sum compound growth calculated?
With the effective annual convention and no further contributions, future value equals the starting amount multiplied by (1 + annual return) raised to the number of years.
Can the calculator show a loss?
Yes. Enter a negative annual return. The projected balance remains non-negative under the supported assumptions, while estimated gains become losses.
Does this decide whether to invest now or later?
No. The delay view compares two simplified contribution timelines at the same assumed return. It is not a market-timing recommendation and cannot predict the better entry date.