Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
roughly an hour
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "roughly an hour" is correct and usable in written English.
It can be used when estimating a duration of time that is not exact, typically in informal contexts. Example: "The meeting will take roughly an hour, so please plan accordingly."
✓ Grammatically correct
News & Media
Academia
Wiki
Alternative expressions(20)
give or take an hour
exactly one hour
approximately one week
nearly an hour
approximately one play
about an hour
roughly one hour
approximately one half
approximately an hour
nearly one hour
close to an hour
basically an hour
approximately one order
approximately one time
about one hour
almost one hour
around an hour
almost an hour
order one hour
in the neighborhood of an hour
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
58 human-written examples
Roughly an hour later, he got a call from a co-worker.
News & Media
Roughly an hour later, the firm paid the award with interest, and the suspension was lifted.
News & Media
It crashed roughly an hour later.
News & Media
Roughly an hour by subway from Midtown Manhattan.
News & Media
They met for roughly an hour and a half.
News & Media
Monday, roughly an hour after the church opened.
News & Media
All right, roughly an hour and a half.
News & Media
Mr. Biss's Curtis course consists of five weekly lectures of roughly an hour each.
News & Media
In "LANDforms," which comes second, you have roughly an hour ago.
News & Media
Roughly an hour passed before the family knew what really happened.
News & Media
Then nothing much happened, for roughly an hour, other than the space's growing uncomfortably hot.
News & Media
Expert writing Tips
Best practice
Consider your audience when using "roughly an hour". While widely understood, more formal contexts may benefit from using "approximately one hour" or "about an hour".
Common error
Avoid using "roughly an hour" in formal documents or scientific reports where precise measurements are expected. Opt for more exact language to maintain credibility.
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "roughly an hour" functions as an adverbial phrase of time, modifying a verb or clause to indicate the approximate duration of an action or event. Ludwig's examples showcase this usage across various contexts.
Frequent in
News & Media
68%
Academia
13%
Wiki
7%
Less common in
Formal & Business
5%
Science
2%
Reference
2%
Ludwig's WRAP-UP
In summary, "roughly an hour" is a common and grammatically correct phrase used to indicate an approximate duration of time. As Ludwig confirms, this phrase appears most frequently in news and media, with less frequent usage in more formal or scientific contexts. When writing, it’s best to use this phrase when precision isn't necessary, and consider alternatives like "approximately one hour" for formal settings.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
approximately one hour
More formal and precise, using "approximately" instead of "roughly".
about an hour
A simpler, more common way to express an estimated hour.
around an hour
Similar in meaning to "about an hour", indicating an approximation.
close to an hour
Suggests the duration is near but not exactly one hour.
nearly an hour
Indicates that the duration is just short of a full hour.
almost an hour
Very similar to "nearly an hour", implying a time close to one hour.
in the neighborhood of an hour
More informal, indicating a time estimate that is approximate.
in the vicinity of an hour
Similar to "in the neighborhood of an hour" but slightly more formal.
give or take an hour
Expresses that the duration is estimated and may vary slightly.
an hour or so
Indicates a duration of approximately one hour, possibly a little more.
FAQs
How can I use "roughly an hour" in a sentence?
You can use "roughly an hour" to estimate time, for example, "The meeting will take "roughly an hour"" or "The drive is "roughly an hour" from here".
What can I say instead of "roughly an hour"?
Alternatives include "about an hour", "approximately an hour", or "around an hour", depending on the context.
Is it okay to use "roughly an hour" in formal writing?
While grammatically correct, "roughly" implies an approximation and may be too informal for certain formal contexts. Consider using "approximately one hour" for greater precision.
What's the difference between "roughly an hour" and "almost an hour"?
"Roughly an hour" suggests a general estimate, while "almost an hour" indicates the time is slightly less than a full hour.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.5/5
Expert rating
Real-world application tested