Present Value Discount Factor Calculator

About this calculator

A present value discount factor is the multiplier that converts a future cash flow into today's money, given a discount rate and a number of periods: DF = 1 / (1 + r)^n, where r is the periodic discount rate and n is the number of periods until the cash flow occurs. Multiply any future amount by this factor and you get its value in today's terms.

This factor is the basic building block behind discounted cash flow (DCF) analysis, net present value (NPV) calculations, and bond and lease valuation — anywhere money received later needs to be compared fairly against money received now. This calculator takes a rate and a number of periods and returns the discount factor directly, so you can apply it to any cash flow without recomputing the formula by hand each time.