A kilogram is equal to 1000 grams. This is a standard measurement in the metric system, which is widely used around the world.
To understand this, it helps to know that the metric system is based on powers of ten. So, when you convert kilograms to grams, you simply multiply by 1000. For example, if you have 2 kilograms, that would be 2 x 1000, which equals 2000 grams.
In summary, 1 kilogram is always 1000 grams, making it easy to convert between the two units by using multiplication or division by 1000.