The average young adult today is around 8 or 9 cm, or about 5%.
Below are average adult human heights by country or geographical region. The original studies and sources should be consulted for details on methodology.
The height of persons can vary over the course of a day, due to factors such as a height increase from exercise.
Humans come in a variety of shapes and sizes. See how the average height for men in the United States compares to average heights for men in 15 other.