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.
In the metric system, grams are used to measure light weights and kilograms are used to measure heavier weights.
Formula to convert grams to kilograms.
Since we know that 1000 g are equivalent to 1 kg, we can therefore say that to convert g to kg we divide the g by 1000.
Mass in kg = Mass in g ÷ 1000
Convert 55000g to kg.
= 55,000 ÷ 1000