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
half kilometer
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "half kilometer" is correct and usable in written English.
It can be used when referring to a distance measurement that is equal to 500 meters. Example: "The finish line is located half a kilometer from the starting point."
✓ Grammatically correct
News & Media
Science
Wiki
Alternative expressions(2)
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
For example, halfway to the summit of Mont Ventoux, police officers stationed every half kilometer forced riders off their bikes.
News & Media
On Feb. 6, in Geophysical Research Letters, a publication of the American Geophysical Union, the scientists reported how a network of temperature sensors that they moored at a depth of a half kilometer, or a third of a mile, gave strong evidence of the passing waves.
News & Media
Less than a half kilometer away flows the Dorpang River, a north-bank tributary of the Brahmaputra in upper Assam, whose embankments repeatedly overflow and burst, drowning paddy fields and depositing sand and pebbles that are washed down from the distantly visible hills of Arunachal Pradesh.
News & Media
Coordinates in populated areas were used, and the nearest intersection to the start point, usually within a half kilometer, was used as the starting survey location.
A quarter mile (half kilometer) north of these is another Inyo Craters explosion pit on top of Deer Mountain.
Wiki
Metrorail stations are located at about a mile (one and a half kilometer) apart along the line, and Metromover stations are located at approximately every two blocks in the greater Downtown area.
Wiki
Human-verified similar examples from authoritative sources
Similar Expressions
49 human-written examples
And here it is happening one and a half kilometers from the Royal Palace.
News & Media
"In the last one and a half kilometers," he said, "I was boxed in.
News & Media
In a display of perfect tactics, they rocketed first onto the two and a half kilometers of irregular cobblestones and left a heavy trail of dust behind.
News & Media
"I think it's only, by the time you get there, two and a half kilometers," Hincapie said of the climb.
News & Media
About one and a half kilometers after passing the entrance to the Syracuse-Noto autostrada, fork to the left at the small sign for Case del Feudo.
News & Media
Expert writing Tips
Best practice
When writing for an international audience, consider providing the equivalent distance in miles (approximately 0.3 miles) alongside "half kilometer" for clarity.
Common error
Avoid mixing metric and imperial units in the same context without proper conversion. If using "half kilometer", don't switch to feet or inches without providing the kilometer equivalent.
Source & Trust
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "half kilometer" functions as a noun phrase specifying a measurable distance. It is commonly used as an adjective preceding a noun, as exemplified by Ludwig in the snippet, "police officers stationed every half kilometer forced riders off their bikes."
Frequent in
News & Media
30%
Science
30%
Wiki
15%
Less common in
Formal & Business
5%
Encyclopedias
5%
Reference
5%
Ludwig's WRAP-UP
In summary, "half kilometer" is a grammatically correct noun phrase used to specify a distance of 500 meters. As indicated by Ludwig, it's suitable for various contexts, including news, science, and general writing. While not as frequent as other distance measurements, "half kilometer" provides a clear and concise way to quantify spatial information. Common alternatives include "five hundred meters" or "point five kilometers", depending on the context's formality.
More alternative expressions(10)
Phrases that express similar concepts, ordered by semantic similarity:
point five kilometers
Uses the decimal representation of one half.
0.5 km
Expresses the distance using the standard abbreviation for kilometer.
five hundred meters
Converts kilometers to meters for a different unit of measure.
approximately 500 meters
Adds an approximation to the measurement, while still conveying the same distance.
around half a kilometer
Uses "around" to indicate an approximate distance.
about half a kilometer
Replaces "approximately" with "about", while maintaining the same meaning.
a distance of 500 m
Describes the measure using the term 'distance'.
within a 500-meter radius
Specifies distance within a specific area.
half a klick
Replaces "kilometer" with the military slang term "klick".
a short distance of 500 meters
Adds the qualifier 'short' to describe the length.
FAQs
How do I use "half kilometer" in a sentence?
You can use "half kilometer" to describe distances, for example: "The store is located "half a kilometer" from the park."
What is an alternative way to say "half kilometer"?
Alternatives include "five hundred meters" or "point five kilometers". The choice depends on the context and desired level of precision.
Is it better to use "half kilometer" or "0.5 kilometers"?
Both are correct, but "half kilometer" is generally preferred in less technical contexts. "0.5 kilometers" is common in scientific or technical writing where precision is important.
What is the equivalent of "half kilometer" in miles?
"Half kilometer" is approximately equal to 0.31 miles. So, you could say "about a third of a mile" as an approximation.
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
81%
Authority and reliability
4.1/5
Expert rating
Real-world application tested