My arm circumference?

Question

I am 16 years old. I am 5'7 and 145 pounds. I lift weights regularly and I wanted to ask if my arm circumference is average. When I am not flexed, they are around 12-12.5 inches. When I flex they can reach almost 14 inches. Is this average for my physique?

Answer 1

being symmetrical is more important. basically the upper arm, calves and neck should be roughly the same circumference. if not then you know what body parts are lagging.