Source: wikibot/units-of-mass
= Units of mass
{wiki=Units_of_mass}
Units of mass are standard measurements used to quantify the amount of matter in an object or substance. The most commonly used units of mass are: 1. **Kilogram (kg)**: The base unit of mass in the International System of Units (SI). It is defined as the mass of a specific platinum-iridium cylinder kept at the International Bureau of Weights and Measures. 2. **Gram (g)**: A subunit of the kilogram, where 1 kilogram equals 1000 grams.