Definition of kilogram 1. This gold bar has a mass of 1 kg. Mega 1 Million 10 6.
The kilogram abbreviation kg is the Standard International SI System of Units unit of mass.
Mega 1 Million 10 6. 1 kg 1000 grams. This gold bar has a mass of 1 kg. The term Mega is accepted for the general usage by the International System of Units in 1960.