Business planning

Man-Hours Calculator

Enter the number of workers and the hours each works to find the total man-hours.

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Workers & hours

Enter the workers and hours to see the total man-hours.

Worked example

With these example inputs:

  • Number of workers10
  • Hours per worker160

Total man-hours: 1,600

  • If the first figure were 10% higher1,760

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Frequently asked questions

How are man-hours calculated?

Multiply the number of workers by the hours each one works. Ten workers putting in 160 hours each total 1,600 man-hours.

What are man-hours used for?

They measure the labour a task or project needs, independent of the calendar. Planners use them to estimate cost, staffing and how long work will take.