Writing measurements in kilogram and gram Kilograms (kg) and grams (g) are both units of mass, so they are related. 1 kilogram is equal to 1,000 grams.

Writing measurements in kilogram and gram Kilograms (kg) and grams (g) are both units of mass, so they are related. 1 kilogram is equal to 1,000 grams.

But the kilogram isn’t the first of the seven base metric units to switch from a physical measure to a mathematical constant.

Metrology, the branch of science dedicated to measurement, has created better and better systems of measurement for the kilogram based on fundamental principles rather than arbitrary chunks of ...