Lumpsum Investment Calculator

What is a Lumpsum Investment?

A lumpsum investment is a one-time investment of a large amount. Unlike SIPs where you invest regularly, lumpsum investing means putting all your money to work at once. This approach is most effective when you have a windfall, bonus, or savings you want to invest for the long term.

When to Choose Lumpsum over SIP?

• Market at a Low: When markets have corrected and valuations are attractive, lumpsum investing can maximize returns.
• Windfall Income: When you receive a bonus, inheritance, or large payment, a lumpsum investment puts your money to work immediately.
• Long Time Horizon: With 10+ years, lumpsum investments statistically outperform SIPs due to longer compounding periods.

The lumpsum formula

A single investment left to compound annually grows by the standard compound interest formula:

• FV — the projected value at the end
• P — the amount invested today
• r — the expected annual return
• t — the number of years invested

Worked example. PKR 5,00,000 invested at an expected 14% a year grows to about PKR 18.5 lakh over 10 years. Leave it five more years and it reaches roughly PKR 35.7 lakh — the extra five years nearly double the result, because compounding in the later years works on a much larger balance than it did at the start.

The risk a lumpsum carries

A lumpsum commits your entire amount at one price on one day, so your result depends heavily on when you invest. Entering just before a sharp PSX correction can leave you underwater for years, while the same money invested a few months later might never see a loss. If a single entry point makes you uneasy, split the amount across several months — that is effectively a SIP, and our SIP calculator will project it for you.