Translation guide
The metric prefix 'kilo-' meaning one thousand (10³) is expressed in Japanese using the katakana loanword キロ (kiro). It is used in the same way as in English for units like kilograms, kilometers, etc.
Expressing the prefix 'kilo-' as in kilogram, kilometer, kilowatt, etc.
The standard katakana rendering of 'kilo-'. Used as a prefix attached to unit names, e.g., キログラム (kilogram), キロメートル (kilometer). In casual speech, キロ alone can mean kilogram or kilometer depending on context.
この荷物は5キロあります。
This package weighs 5 kilograms.
駅まで2キロです。
It's 2 kilometers to the station.
In everyday conversation, キロ often means kilogram when talking about weight, or kilometer when talking about distance. Context makes it clear.
体重は何キロですか？
How many kilograms do you weigh?