Why does present value matter?

It lets you compare cash you'd receive at different times on an apples-to-apples basis, accounting for the time value of money.

Present Value Calculator

Present value tells you what a future sum of money is worth today, given a specified discount (interest) rate and number of periods.

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Formula

PV = FV / (1 + r)^n

Present Value and Future Value: Two Sides of the Same Formula

How present value and future value calculations mirror each other, with worked examples in both directions.

Payback Period vs. NPV: Two Ways to Evaluate the Same Investment

The payback period and net present value formulas explained side by side, showing what each one misses.

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