Lumpsum investment calculator

Invested a bonus or savings in one go? See what it could be worth later.

  • For India and the US
  • By the Gleexa team
  • Free, no sign-up
  • Last reviewed
  • Private: nothing you type is stored
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A lumpsum investment puts a single amount to work at once, such as a bonus, a maturing FD or an inheritance. This calculator shows what it could grow to with compound returns.

The lumpsum formula

Future value = P × (1 + r)ⁿP = amount invested, r = yearly return ÷ 100, n = years

Worked example

Example: ₹5 lakh for 10 years at 12%

Estimated value: ₹15.53 lakh, about three times the original amount.

At 8% it would be about ₹10.8 lakh; at 15%, about ₹20.2 lakh. The rate matters enormously over long periods.

Mutual fund returns aren't guaranteed. Results use the rate you enter as if it were earned every year; real returns go up and down.

Lumpsum or SIP?

If markets rise steadily, investing everything at once earns more. If they fall soon after, a SIP buys more units at lower prices. Many investors split the difference: park the money in a liquid fund and move it into equity through a systematic transfer plan (STP) over 6–12 months. Compare with the SIP calculator.

  • Equity funds: gains on units held over 12 months are taxed at 12.5% above ₹1.25 lakh of such gains a year; gains within 12 months at 20%.
  • Debt funds bought from April 2023: gains are added to your income and taxed at your slab rate.

How to use this calculator

  1. Enter the amount.
  2. Enter an expected yearly return and time.

FAQs

Lumpsum or SIP?

A lumpsum is invested all at once, so timing matters more. A SIP spreads it out. Many people split a bonus into a few monthly instalments.

Results are estimates and aren't financial advice. For decisions about your own money, check with a qualified adviser. Spotted a mistake? Tell us.

Lumpsum Calculator: One-Time Investment Returns | Gleexa