Lumpsum Calculator: Future Value of a One-Time Investment

If you have a sum ready to invest all at once, this calculator shows roughly how much it could grow into over a few years.

What is it?

A lumpsum investment means putting the entire amount into a mutual fund or other instrument in one go. Over long periods, compounding can multiply it significantly.

How is it calculated?

The formula is simple: FV = P × (1+r)ⁿ, where P is the principal, r is the annual return and n is the number of years.

Example

₹1 lakh at 12% for 10 years grows to roughly ₹3.1 lakh — more than 3× — without you adding anything further.

Key things to know

• If markets are at a high, splitting a lumpsum into a few tranches (STP) can reduce timing risk.
• Longer horizons reduce the impact of short-term volatility.
• Keep return expectations realistic.
• Match the fund to your goal and risk appetite.

What to do next

A one-time investment needs a demat or mutual fund account.

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Frequently asked questions

Is lumpsum better than SIP?
Lumpsum tends to win when markets are low; SIP is usually safer when the future is uncertain.

Are returns guaranteed?
No — mutual fund returns depend on the market.

How is it taxed?
Equity funds follow LTCG rules after one year of holding.

Disclaimer: This article is for general information only and is not financial or tax advice. Consult a qualified advisor before making investment or tax decisions.