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 metric ton or tonne (t) equals 1,000 kilograms and is used for measuring heavy cargo, industrial output, and vehicle weights worldwide. Shipping containers, steel production, and greenhouse gas emissions are all commonly reported in tonnes. One tonne equals approximately 2,204.6 pounds or about 1.1023 short tons.