Investment Calculator

The calculator treats your entered annual return as a constant compounding rate applied every year to a single lump-sum initial investment, with no additional contributions and no withdrawals along the way. This isolates the pure effect of time and rate on a one-time deployment of capital.

Because the model compounds annually, a modest difference in assumed return — say 12% versus 15% — produces a surprisingly large gap in the final balance once you extend the time horizon to 10 or 15 years, which is exactly the kind of comparison this tool is meant to make visible.

Enter your initial lump-sum amount in PKR, your expected annual return as a percentage, and the number of years you intend to remain invested. The calculator returns the projected future value and the total gain over the holding period.

Run the same initial amount through a conservative, moderate, and optimistic return assumption — for example 9%, 13%, and 17% — to see the realistic range of outcomes rather than anchoring on a single confident number that markets may not actually deliver.

The formula is FV = P x (1 + r)^t, where FV is the future value, P is the initial principal, r is the annual return as a decimal, and t is the number of years. Total gain is simply FV minus P.

You can also read your entered return as the constant compound annual growth rate (CAGR) that would take your starting principal to the same ending value over the same period — a useful way to benchmark an actual historical investment against a simple assumption.

Suppose you invest a lump sum of PKR 1,000,000 and expect an average annual return of 14% over 10 years. Using the formula, the future value works out to roughly PKR 3,707,000, meaning a total gain of about PKR 2,707,000 — nearly three times your original investment.

Now compare a more conservative 10% annual return over the same 10 years: the future value would be closer to PKR 2,594,000, a gain of about PKR 1,594,000 — over a million rupees less than the 14% scenario, purely from a 4 percentage point difference in assumed annual return compounded over a decade.

Never treat a single confident return assumption as a guarantee. Stock markets, mutual funds, and even some fixed-income products can post negative years, and a smooth constant-return projection can create false confidence about volatile assets. Use conservative assumptions for any goal you genuinely cannot afford to miss.

This calculator does not deduct fees, taxes on capital gains or dividends, or fund management charges, all of which reduce your real net return. If your product charges an annual management fee of 1% to 2%, subtract that from your assumed gross return before entering it here for a more realistic net projection.

Remember that this model is built for a single lump sum. If you also plan to add money regularly — for example a monthly investment plan — treat each contribution as its own smaller lump sum with a shorter remaining horizon, or use a spreadsheet for full precision across many contributions.

If your goal is retirement savings specifically, the Retirement Calculator applies the same lump-sum compounding logic but is framed around a longer, goal-based horizon. If you want to see how the future rupee value you have just calculated compares to rising living costs, pair this page with the Inflation Calculator.

For a product that pays a straightforward, unchanging annual amount with no reinvestment, the Simple Interest Calculator or Compound Interest Calculator may model your specific product more precisely than a general investment projection.