The milligram (mg) is a tiny metric unit of mass equal to one-thousandth of a gram, essential in pharmaceuticals and nutrition labeling. Medication dosages, vitamin content, and food additive quantities are typically expressed in milligrams. One milligram equals approximately 0.0000353 ounces, making it the go-to unit for measuring extremely small masses.

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.