Or neck, or combination of both.


Height isn't just legs and torso.


Not everyone has the same length neck or head height.


Height of an average human head:


Male: 9.4 in / 23.9 cm for 99th percentile


8.6 in / 21.8 cm for 50th percentile


The average neck is closer to 10-12 centimetres (3.9-4.7 inches) in length.


Even the "average" neck varies by almost an inch...