Pronunciation IPA (key): /ˈkɪləɡræm/ Audio (US)(file) Hyphenation: kil‧o‧gram Noun Singular kilogram Plural kilograms Kilogram is a measurement of mass, one kilogram is 1000 grams. Synonyms: kilo and kg One litre of water weighs about one kilogram. Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads