金融

Payback Period Calculator

Determine exactly how long it will take for an investment to generate enough cash flow to recover its initial cost.

$
$
Net profit generated by the investment each year.
Payback Period
Total Cash Flow Entered
使い方
  1. Enter the Initial Investment Cost. This is the upfront capital required (e.g., buying new machinery, purchasing software, marketing campaign).
  2. Select the Cash Flow type. If the investment generates the same amount of money every year, select Constant. If it changes as the business ramps up, select Variable.
  3. Enter the projected cash flows.
  4. The calculator determines the exact year and fraction of a year needed to "break even" on the initial investment.

計算式

Payback Math:
For Constant Cash Flow:
Payback Period = Initial Investment / Annual Cash Flow

For Variable Cash Flow:
Calculated by subtracting each year's cash flow from the remaining investment balance. Once the balance flips positive, the fractional year is calculated by: (Unrecovered Cost at start of year) / (Cash Flow during that year).

The Payback Period Calculator is a fundamental capital budgeting tool for project managers and business owners. It provides a quick liquidity analysis by revealing how fast an investment will pay for itself before it begins generating pure profit.