I really don't know. I put the measurements so you can check. These are typically marketed to young men. Just take a tape measure and see if the shirt measurements match up pretty well. He probably wouldn't button the neck (casual shirt). Arm measure shoulder to wrist. Shoulder to shoulder is noted too.
Thanks for the answers & suggestions. I knew there was a reason I should buy a tape measure..even though my eyes no longer see well enough to sew..now if I can just remember to buy one next time I go to WM..assuming I remember what their called that is ;-) LOL