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
hence why
Grammar usage guide and real-world examplesUSAGE SUMMARY
'hence why' is correct and usable in written English.
You can use it when you want to explain why a particular thing is true. For example: "It was a difficult decision to make, hence why it took me so long to reach a conclusion."
✓ Grammatically correct
News & Media
Science
Wiki
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
Hence why my teeth are so bad.
News & Media
Hence why Windows 8 is so … weird.
News & Media
Hence why the body language matters.
News & Media
Hence why they've hung around so long.
News & Media
Hence why I'm sitting here writing about them.
News & Media
Hence, why Shawn Marion had to go last year.
News & Media
Hence why I suggest you should ratchet down your expectations.
News & Media
"I felt really, really comfortable, hence why I was at the front," said Hawkins.
News & Media
Hence why I use my Aboriginal passport, not an Australian passport, whenever possible.
News & Media
"But somebody had to be singing the words, hence why I had a little microphone.
News & Media
Hence why Ironman UK takes place in the city of dreams – Bolton.
News & Media
Expert writing Tips
Best practice
Use "hence why" to clearly and concisely indicate a cause-and-effect relationship between two statements. Ensure the connection is logical and evident to the reader.
Common error
Avoid using "hence why" excessively in casual conversation or informal writing. While grammatically correct, it can sound overly formal or pretentious in everyday contexts. Opt for simpler alternatives like "that's why" or "so" in less formal settings.
Source & Trust
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "hence why" functions as a causal connector, linking a preceding statement to its explanation or consequence. According to Ludwig, it's grammatically correct and widely used to establish a cause-and-effect relationship. Its usage is confirmed in the numerous examples provided.
Frequent in
News & Media
50%
Wiki
25%
Science
25%
Less common in
Formal & Business
0%
Encyclopedias
0%
Social Media
0%
Ludwig's WRAP-UP
In summary, "hence why" is a grammatically sound phrase used to connect a statement with its cause or explanation. Ludwig AI confirms its correctness and usability. It's commonly found in news, wiki, and scientific contexts, offering a neutral to slightly formal tone. While versatile, avoid overuse in very informal settings, opting for simpler alternatives. It is important to make sure that, even if this phrase is correct, you always want to sound natural and chose the words that better suit your audience.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
that's why
A more direct and common way to express the reason for something.
therefore
A formal term indicating a logical conclusion or result.
consequently
Indicates that something is a result or effect of something else.
for this reason
Explicitly states that the following information is the cause of a preceding statement.
as a result
Highlights that something is a direct outcome of a previous action or event.
this is the reason why
A more emphatic way of stating the cause or explanation.
that is why
Similar to "that's why" but slightly more formal.
on account of this
A more formal and less common way to express causality.
due to this
Indicates causality by citing a specific factor or situation.
because of this
Emphasizes the causal relationship between two events or situations.
FAQs
How can I use "hence why" in a sentence?
Use "hence why" to introduce the reason or explanation for a preceding statement. For instance, "The project was delayed, hence why the deadline was extended."
What can I say instead of "hence why"?
You can use alternatives like "that's why", "therefore", or "consequently" depending on the context.
Is it correct to use "hence why" in formal writing?
Yes, "hence why" is grammatically correct and can be used in formal writing to indicate a cause-and-effect relationship. However, consider the tone and audience to ensure it fits appropriately.
What's the difference between "hence why" and "because"?
"Hence why" is used to introduce a result or explanation based on a previous statement, whereas "because" introduces the reason or cause directly. For example, "The deadline was extended because the project was delayed." is different from "The project was delayed, hence why the deadline was extended."
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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
81%
Authority and reliability
4.5/5
Expert rating
Real-world application tested