T Nation

Stupid Question: Arm Size

When someone gives the size of their arms (like “I have 16 inch arms”), how is that usually measured? With arms relaxed and hanging at the sides? Arms flexed in the classic double-bicep pose?

Whenever I’ve gotten measured, it’s been in a relaxed state with the forearm at ninety degrees.

Arms flexed, cold (before training) and also arms flexed, pumped.

They measure boxers with arms flexed, so I assumed that was the proper way.