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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
man-hours
Grammar usage guide and real-world examplesUSAGE SUMMARY
"man-hours" is correct and usable in written English. You can use it to quantify the amount of work performed by one person in one hour. For example, "The project required 200 man-hours to complete." Alternative expressions include "work hours" and "labor hours."
✓ Grammatically correct
News & Media
Science
Alternative expressions(20)
work hours
time investment
project duration
scheduled hours
working hours
business hours
office hours
hours of manpower
hours of labour
hours of labor
during work hours and leisure time
leisure time
shift timings
work schedule
work period
time commitment
time allocation
investment of time
time expenditure
temporal investment
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
39 human-written examples
The man-hours that go into living like this.
News & Media
It takes 160 man-hours to make this bed.
News & Media
I cannot imagine the man-hours it took.
News & Media
"We must have put in 600 man-hours.
News & Media
I hate to tell you how many man-hours we've spent talking this stuff through.
News & Media
– Union crews worked more than 20,000 man-hours before Sunday's session.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
21 human-written examples
The company has spent years of man hours and billions of pounds developing these engines.
News & Media
So it wasn't really countless man hours.
News & Media
The standard man hours can be set up in a computerized estimating system and the piping man hours are calculated using the unit quantity method.
TC: How many "man hours" did this take for design?
News & Media
"It takes hundreds of man hours," he said.
News & Media
Expert writing Tips
Best practice
When reporting on project costs or efficiency, use "man-hours" to provide a clear understanding of the labor investment involved.
Common error
Avoid using "man-hours" in contexts where the audience may not understand the term. Provide a brief explanation or use a more general term like "work hours" to ensure clarity.
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "man-hours" functions as a noun, typically used to quantify the amount of work done by one person in one hour. As Ludwig AI confirms, this phrase is correct and usable in written English. The examples provided by Ludwig AI show its function is to measure labor investment.
Frequent in
News & Media
47%
Science
43%
Wiki
7%
Less common in
Formal & Business
2%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "man-hours" is a grammatically correct and frequently used noun phrase to quantify the amount of work done. Ludwig AI confirms its usability. While the phrase remains common, more inclusive alternatives like "person-hours" are increasingly favored to avoid gender-specific language. Usage contexts span news media, science, and business, reflecting its broad applicability in project management and resource allocation. When using "man-hours", ensure your audience understands its meaning, and consider alternatives when inclusivity is a priority.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
work hours
This alternative is a more concise and modern term for describing the time spent on a task.
labor hours
This alternative emphasizes the human effort involved, similar to "man-hours".
person-hours
This alternative is a gender-neutral term that conveys the same meaning as "man-hours".
staff hours
This term refers to the total time contributed by staff members to a project.
employee hours
This alternative specifies that the time is contributed by employees.
time investment
This phrase highlights the time allocated to a project or task.
effort expended
This alternative emphasizes the effort required to complete a task.
total workload
This term refers to the overall amount of work required for a project.
project duration
This phrase specifies the length of time required for a project, but it does not specify the amount of workers.
human resources allocation
This phrase emphasizes the distribution of human resources required for a project or task.
FAQs
How do I calculate "man-hours" for a project?
To calculate "man-hours", multiply the number of people working on a task by the number of hours they each work. For example, 5 people working for 8 hours each would result in 40 "man-hours".
What is a more inclusive alternative to "man-hours"?
A more inclusive alternative to "man-hours" is "person-hours", which avoids gender-specific language.
When is it appropriate to use "man-hours" in technical documentation?
"Man-hours" can be used when quantifying the effort needed for a project. However, always consider if "work hours" or "labor hours" could be more descriptive and understandable for a broader audience.
How can I use "man-hours" to improve project planning?
You can track "man-hours" to assess the time and resource allocation, predict future project timelines, and optimize workflow by comparing planned versus actual hours.
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Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
82%
Authority and reliability
4.5/5
Expert rating
Real-world application tested