Kilogram(kg) is the base unit of mass in the International System of Units (SI) and it was originally defined as the mass of one liter of water.

While a gram(g) is a metric unit of mass and was formally defined as the absolute weight of a volume of pure water equal to the cube of the hundredth part of a meter, and at the temperature of melting ice.

**Formula to convert kilograms to grams.**

In order to convert kilograms to grams you first need to know the relationship between the two.

It state that 1 kilogram is equivalent to 1000 grams.

Therefore, when changing kg to g, we multiply the kg by 1000.

**Example:**

Convert 2 kg to grams.

**= 2 x 1000**

**= 2000 grams**