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
a kilo
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "a kilo" is correct and usable in written English.
It can be used when referring to a kilogram, often in contexts related to weight or measurement, particularly in cooking or trade. Example: "I need to buy a kilo of flour for the recipe."
✓ Grammatically correct
News & Media
Alternative expressions(9)
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
59 human-written examples
"A year ago chicken was six dinars a kilo.
News & Media
Robbers were getting €6 ($7) a kilo.
News & Media
A kilo costs around £20,000.
News & Media
A kilo is a kilo is a kilo," said Chris Langton, Samoa Air's chief executive.
News & Media
"It weighs half a kilo".
News & Media
Sadiq recommends: pistachio barfi (£10.30 a kilo).
News & Media
A kilo of fentanyl brings in $1m.
News & Media
5 stars Tesco finest £7.99 a kilo.
News & Media
Here a kilo of rice cost $40 compared to $2 a kilo outside the besieged area.
News & Media
He started with a kilo or a kilo and a half and went up from there.
News & Media
"We can't even buy a kilo of rice or a kilo of sugar.
News & Media
Expert writing Tips
Best practice
When writing about quantities in international contexts, use "a kilo" to provide a familiar metric unit of weight. Ensure your audience understands metric measurements or provide conversions where necessary.
Common error
Ensure you're using "kilo" to refer to weight (kilogram) and not confusing it with "kilometer", which is a unit of distance. Context is crucial to avoid misinterpretation.
Source & Trust
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "a kilo" functions primarily as a noun phrase indicating a unit of weight (kilogram). It commonly appears as a measurement in contexts involving commerce, cooking, and science. As noted by Ludwig, this usage is grammatically correct.
Frequent in
News & Media
100%
Less common in
Science
0%
Formal & Business
0%
Academia
0%
Ludwig's WRAP-UP
In summary, the phrase "a kilo" is a grammatically sound and very common way to refer to a kilogram. It is primarily used in neutral to informal contexts such as news reporting and everyday conversation. According to Ludwig, the phrase serves to specify quantities, particularly weights, and is widely accepted across various English-speaking communities. While "a kilo" is suitable for most situations, using "one kilogram" offers a more formal alternative for scientific or technical writing. The abundant examples provided by Ludwig showcase its frequent use in reputable news sources and reflect its common understanding.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
one kilogram
Replaces the article "a" with the numeral "one", providing a more formal tone.
a kilogram
Expands the abbreviation "kilo" to its full form, "kilogram", which can sound more precise in some contexts.
one kg
Uses the abbreviation "kg" instead of "kilo", which is common in technical or informal settings.
a kg
Uses the abbreviation "kg" instead of "kilo", providing a shorter, less formal alternative.
1000 grams
Expresses the quantity in grams instead of kilograms, emphasizing the smaller unit.
2.2 pounds
Converts the measurement to pounds, offering a different unit of measure that's common in some regions.
approximately a kilo
Adds the qualifier "approximately" to indicate an estimate rather than an exact measurement.
around a kilo
Uses "around" to suggest an approximate quantity, making the statement less precise.
about a kilo
Similar to "around a kilo", this phrase indicates an estimation of the weight.
a unit of one kilo
Rephrases to emphasize "unit" as a quantity.
FAQs
How is "a kilo" used in sentences about food prices?
The phrase "a kilo" is often used to specify the price of food items by weight, such as "Tomatoes are two dollars "a kilo" at the market".
Can "a kilo" refer to something other than weight?
While primarily referring to a kilogram of weight, "a kilo" can sometimes be used more generally to describe an amount, especially in informal contexts. However, this usage is less precise.
What's the difference between saying "a kilo" and "one kilogram"?
While both "a kilo" and "one kilogram" refer to the same quantity, "a kilo" is generally more informal and conversational, whereas "one kilogram" is more formal and precise. Use "one kilogram" in scientific or technical writing.
Is it correct to use "a kilo" in formal writing?
While understandable, "a kilo" might be considered too informal for strictly formal writing. In such cases, it's better to use "one kilogram" or "one kg" for greater clarity and precision.
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
87%
Authority and reliability
4.5/5
Expert rating
Real-world application tested