What is the average human arm span?

The average human arm span of a woman is 5 feet 4 inches while the average arm span of a man is 5 feet 9 inches. In typical humans, the arm span is equal to the height; therefore, the average arm span is also roughly the same as the average height, with males generally having longer arm spans than females.

The arm span of the average human not only differs by gender, but it also differs largely by country, as well as time period. People are statistically becoming taller in time, thus developing larger arm spans, which is known as the secular trend of human growth.