Verified answer

The kilogram is actually the base unit. The "kilo" prefix is just a naming convention that makes the gram more convenient for everyday use. Because of this, the kilogram is used in all of the derived SI units, rather than the gram.

The kilogram was originally intended to be the mass of one liter of water under standard conditions. There's too much variability in water, so the International Prototype Kilogram, a platinum-iridium cylinder kept at the International Bureau of Weights and Measures in France, was created to be THE standard kilogram. Mass is the only SI unit that is still based on a physical object.

Kilo = 1000.

-_- You need to go back to 8th grade physical science....