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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
by how much
Grammar usage guide and real-world examplesUSAGE SUMMARY
"by how much" is correct and usable in written English.
It is used to ask for an amount or degree of difference. For example: "By how much have energy prices increased this year?".
✓ Grammatically correct
News & Media
Science
Formal & Business
Alternative expressions(20)
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
60 human-written examples
By how much?
News & Media
By how much is unclear.
News & Media
He did not say by how much.
News & Media
The contentious issue is: by how much?
News & Media
By how much, nobody's quite sure.
News & Media
But by how much, no one knows.
News & Media
By how much will be crucial.
News & Media
By how much, and by what means?
News & Media
I don't know by how much".
News & Media
The question is, by how much?
News & Media
It is rarely recognised by how much.
News & Media
Expert writing Tips
Best practice
When using "by how much", ensure the context clearly indicates what is being measured or compared. This avoids ambiguity and makes your question more precise.
Common error
Avoid using "by how much" in isolation. Always provide the necessary context to make the question clear, such as "By how much did sales increase this quarter?" instead of simply "By how much?"
Source & Trust
91%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "by how much" functions as an interrogative adverbial phrase. It modifies a verb or clause to inquire about the degree, extent, or quantity of something. As Ludwig AI confirms, it is a standard way to ask for a quantitative difference.
Frequent in
News & Media
60%
Science
20%
Formal & Business
10%
Less common in
Encyclopedias
3%
Wiki
3%
Reference
4%
Ludwig's WRAP-UP
In summary, the phrase "by how much" serves as an interrogative adverbial phrase used to inquire about the magnitude, extent, or degree of something, particularly a difference or change. Ludwig AI indicates that it's grammatically correct and suitable for general use. It is frequently used in news and media, as well as in scientific and formal business contexts, indicating its versatility across different registers. While the phrase is generally neutral in tone, providing clear context is crucial for avoiding ambiguity. Related phrases include "to what extent" and "by what amount". Overall, "by how much" is a common and useful phrase for eliciting specific quantitative information.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
by what amount
A more literal rephrasing, focusing on the numerical difference or quantity.
by what degree
Similar to "to what extent" but more focused on precise measurement or gradation.
to what extent
This alternative uses a more formal tone and explicitly asks about the degree or scope of something.
what the difference is
This is a simpler way of asking for the amount of difference between two things.
how significantly
This emphasizes the importance or impact of the quantity or difference in question.
how much greater
This alternative specifically asks about the degree of increase or superiority.
how considerably
This highlights that the amount or degree is noteworthy or substantial.
in what proportion
This phrase is more mathematically inclined, asking about the relative size of a part to a whole.
by a certain margin
This implies a measurable gap or difference between two values.
what's the magnitude
This alternative asks about the size or scale of something, often used for abstract concepts.
FAQs
How can I use "by how much" in a sentence?
Use "by how much" to inquire about the amount or degree of difference. For example, "By how much did the company's profits increase this year?"
What phrases are similar to "by how much"?
Alternatives include "to what extent", "by what amount", or "how significantly", depending on the specific nuance you want to convey.
Is it correct to say "by how much" in formal writing?
Yes, "by how much" is appropriate for formal writing, particularly when seeking precise quantitative information. It is widely used in news, business, and academic contexts.
What's the difference between "by how much" and "how much"?
"By how much" implies a comparison or difference, while "how much" simply asks about a quantity. For instance, "By how much did prices increase?" versus "How much does this cost?".
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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
91%
Authority and reliability
4.5/5
Expert rating
Real-world application tested