What is the average shoulder length of a human?

The average shoulder width of an adult human typically ranges from about 14 to 18 inches (35 to 46 cm) for males and 12 to 16 inches (30 to 41 cm) for females. However, this can vary based on factors such as genetics, ethnicity, and overall body size. It's important to note that shoulder width is often measured from the outer edge of one shoulder to the outer edge of the other.