What is a man-hour?
It is a unit of work equal to one person working for one hour. It helps in estimating labor costs and scheduling.
Calculator
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Analysis
Interpretation of the current calculator output
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How to Use
Step-by-step instructions
- 1Enter the number of workers assigned to the project
- 2Input the number of hours each person works per day
- 3Enter the total number of days the project will take
- 4Input the average hourly wage (optional, for cost)
- 5Review the total man-hours and estimated labor cost
Man Hours Formula
A man-hour represents the amount of work performed by the average worker in one hour.
Total Man Hours = Number of Workers × Hours per Day × Number of DaysVariables:
WorkersNumber of people working on the taskHours/DayAverage work hours per person per dayDaysDuration of the project in daysExample
Construction Project
Inputs:
Workers:10 people
Hours/Day:8 hours
Duration:20 days
Rate:$25/hour
Steps:
- 1.Man Hours = 10 × 8 × 20 = 1,600 hours
- 2.Total Cost = 1,600 × $25 = $40,000
Result:
1,600 Man Hours ($40,000)
Frequently Asked Questions
Does this include breaks?
Typically, man-hours measure productive work time. Unpaid lunch breaks are usually excluded, but paid breaks might be included depending on company policy.
How do I use this for bidding?
Estimate the total man-hours needed, multiply by your fully burdened labor rate (wages + taxes + overhead), and add your profit margin.