* Kilogram (kg): This is the standard unit of mass in the International System of Units (SI). While not inherently "large," it's the base unit used for larger multiples.
* Megagram (Mg): Also known as a metric ton, it equals 1,000 kilograms. This is commonly used for large objects like ships, buildings, and even entire planets.
* Gigagram (Gg): This is equal to 1,000,000 kilograms (or 1,000 metric tons). It's used for extremely massive objects like large asteroids or smaller moons.
* Teragram (Tg): This is equal to 1,000,000,000 kilograms (or 1,000,000 metric tons). It's used for even larger celestial bodies like larger moons or dwarf planets.
* Petagram (Pg): This is equal to 1,000,000,000,000 kilograms (or 1,000,000,000 metric tons). It's used for incredibly massive objects like the largest moons in the solar system.
* Exagram (Eg): This is equal to 1,000,000,000,000,000 kilograms (or 1,000,000,000,000 metric tons). It's often used for describing the mass of planets or very large stars.
* Zettagram (Zg): This is equal to 1,000,000,000,000,000,000 kilograms (or 1,000,000,000,000 metric tons). This is used for extremely massive objects like large stars or entire galaxies.
* Yottagram (Yg): This is equal to 1,000,000,000,000,000,000,000 kilograms (or 1,000,000,000,000,000 metric tons). It's used for the most massive objects in the universe, such as supermassive black holes and entire galaxy clusters.
The choice of unit depends on the size of the object being measured. For example, the mass of a car might be measured in kilograms, while the mass of a planet would be measured in exagrams.
