The gram (g) is the base unit of mass in the metric system, defined as one-thousandth of a kilogram. It is the standard measurement for food portions, postal rates, and small objects in daily life across most of the world. One gram equals approximately 0.0353 ounces, and a standard paperclip weighs roughly one gram.

The pound (lb) is an imperial unit of mass equal to exactly 0.45359237 kilograms, serving as the primary weight unit in the United States and parts of the British Commonwealth. Body weight, gym equipment, and packaged goods in America are almost always labeled in pounds. One pound equals 16 ounces or roughly 0.4536 kilograms.