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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
at what length
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "at what length" is correct and usable in written English.
It can be used when inquiring about the specific length or extent of something, often in contexts related to measurements or descriptions. Example: "At what length should I cut the fabric for the project?"
✓ Grammatically correct
News & Media
Science
Wiki
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
8 human-written examples
We don't know what sort of stories will work, at what length, with what, if any, audience participation.
News & Media
Turing: Eh? Oh, erm, also we know how often they communicate, at what length they communicate, and where they go and what they do next.
News & Media
Facilitate both groups' discussions, noting which characters each talked about, at what length or depth and the emotion or judgment toward them.
News & Media
Of course, My Anecdote, c'est moi, but we hosts have questions: At what length does an anecdote cease to be an anecdote and become a problem, verbalized or implied?
News & Media
Tables of correlations were examined to find at what length of moving average correlations between Silviscan and USV measurements were maximised.
He would have demanded, "What kind of wall, at what length, height, and width, of which materials, at what cost, built by whom, maintained at what expense, manned by how many troops, for how long, to what measurable goal?" Trump has a celebrity's instincts, Napoleon those of the artilleryman.
News & Media
Human-verified similar examples from authoritative sources
Similar Expressions
52 human-written examples
Here's a look at what lengths some foreign carriers go to for families on international flights.
News & Media
If you look now at what lengths the German chancellor is going to with Turkey, then it is clear that she wants a change of direction.
News & Media
"Look at what lengths the Koreans would go to — by using a guy with as little credibility as me, because there was nobody else there to support them," he says.
News & Media
Student B drops the object from that height while Student A monitors the spray from ground level, measures the length of the spray and records at what lengths each type of material (coffee, flour, sand or gravel) sprays, and records this information on a sheet of paper.
News & Media
If you are not sure what the right length is, search the internet for information or ask the salesman at the music store what length your particular bass requires.
Wiki
Expert writing Tips
Best practice
When using "at what length", consider the context. It's most appropriate when inquiring about a specific measurement or dimension. For example, "At what length should the rope be cut for the best results?"
Common error
Avoid using "at what length" in informal conversations where simpler alternatives like "how long?" or "what size?" would be more suitable.
Source & Trust
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "at what length" primarily functions as an interrogative prepositional phrase. It introduces a question about a specific measurement or dimension. Ludwig's examples illustrate its use in diverse contexts, from storytelling to scientific measurements, to determine the optimal or expected length of something.
Frequent in
News & Media
50%
Science
31%
Wiki
19%
Less common in
Formal & Business
0%
Academia
0%
Encyclopedias
0%
Ludwig's WRAP-UP
The phrase "at what length" is a grammatically correct and usable phrase used to inquire about specific measurements or dimensions. As determined by Ludwig, it functions primarily as an interrogative prepositional phrase, seeking precise information about size, duration, or extent. While it appears most frequently in News & Media and Scientific contexts, its formality level leans toward neutral to formal. When using "at what length", consider the context and audience, opting for simpler alternatives in informal settings. Remember to use this phrase when precise measurement or dimension is required.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
to what extent
This alternative replaces "at what length" with a more abstract term for degree or scope.
how long
This option offers a shorter, more direct way to ask about the duration of something.
what duration
This phrase uses a more formal term for time span.
what the length of
This version inverts the structure for emphasis.
at what size
This alternative shifts the focus from length to overall size.
regarding the length
This option introduces a prepositional phrase to specify the topic.
concerning the length
This alternative provides a formal way to address the topic of length.
in terms of length
This phrase introduces the concept of length as a parameter or dimension.
with respect to length
This option adds a formal tone while discussing length.
how much in length
This phrase includes "how much" to emphasize the quantity of length.
FAQs
What does "at what length" mean?
The phrase "at what length" is used to inquire about the specific measurement or extent of something. It is commonly used to ask about the size, duration, or dimension of an object or a process.
How can I use "at what length" in a sentence?
You can use "at what length" to ask for a specific measurement. For instance, "At what length should I cut this piece of wood?" or "At what length does this type of vine typically grow?"
What are some alternatives to "at what length"?
Alternatives include "how long", "to what extent", or "what duration". The best choice depends on the context.
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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
85%
Authority and reliability
4.5/5
Expert rating
Real-world application tested