Subsection 2.4.1 Mass Units
The pound is the most commonly used unit for everyday measurements of mass in the United States. This unit is called the pound-mass (lbm) when necessary to distinguish the pound-force.
Pound (lb): One pound of mass is approximately equal to \kg{0.453592} kilograms.
Ounce (oz): The ounce is a smaller unit of mass often used for finer measurements. One ounce is 1/16 of a pound and approximately equal to 28.3495 grams.
The base unit of mass in the SI system is the kilogram.
kilogram (kg): One kilogram is approximately equal to \lbm{2.2046}.
Gram (g): The gram is a smaller unit of mass frequently used for lighter objects or more precise measurements. One kilogram is equivalent to 1,000 grams.
Milligram (mg): The milligram is an even smaller unit used for very small masses, often in scientific and medical contexts. One gram is equivalent to 1,000 milligrams.
Microgram (µg): The microgram is an even smaller unit used for extremely small masses, especially in fields like chemistry and pharmacology. One microgram is equivalent to 0.001 milligrams.
Metric Ton or Tonne: For larger masses, the metric ton is equivalent to 1000 kg.
