What Does kg Mean in Medical Terms?

kg stands for kilogram. Unit of weight equal to one thousand grams.

kilogram

Unit of weight equal to one thousand grams.

Where you will see kg

You will most often see kg in medication orders and prescriptions, medical charts and clinical notes.

Example

A medication order might be written with “kg” as shorthand for kilogram.

Related abbreviations

Browse the full Medical Abbreviations guide — 5,715 entries, searchable A–Z and by specialty.

Educational reference only. This guide is for learning and quick reference. Abbreviations vary between hospitals, countries and specialties, and some are discouraged because they can be misread. Always write and interpret orders using your own institution’s approved abbreviation list, and check anything unclear with the prescriber or your local policy.