Megagram

unitStandard termUnits

A metric measure of mass equal to one million grams, or one metric tonne.

This SI unit represents one million grams, which is exactly equivalent to one thousand kilograms or one metric tonne. While perfectly valid in the SI system, engineers and logisticians almost universally use the term tonne instead. It sometimes appears in scientific literature to maintain strict prefix consistency.

Heard on the job

The structural load limit is listed as 45 megagrams, but everyone just reads it as 45 tonnes.

Also heard as

  • Mg
  • metric tonne
  • tonne