Payback Period Calculator

Calculate the simple and discounted payback period for an investment, plus Net Present Value (NPV).

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Calculate how long it will take to recover your initial investment with our free payback period calculator, a simple way to evaluate project or investment risk.

How It Works

Payback Period = Initial Investment ÷ Annual Cash Flow (for even cash flows). For uneven cash flows, this calculator sums cumulative cash flow year by year until it equals the initial investment.

How to Use This Calculator

  1. Enter your initial investment amount
  2. Enter expected annual cash flows (even or varying by year)
  3. Click Calculate to see the payback period

Frequently Asked Questions

What's considered a good payback period?

This varies by industry and risk tolerance, shorter payback periods generally indicate lower risk, though acceptable timeframes depend on the specific investment context.

What's a limitation of payback period analysis?

It doesn't account for the time value of money or cash flows received after the payback point, making it a simpler but less complete metric than NPV or IRR.

What's the difference between payback period and ROI?

Payback period measures time to recover the investment; ROI measures overall profitability as a percentage, they answer different questions about an investment.

Can payback period be used alongside other metrics?

Yes, it's often used as a quick initial screen alongside more comprehensive metrics like NPV or IRR for a fuller investment picture.