Scale

Human height

From Preliminary Human Factors Guidelines for Traffic Management Centers (July 1999) FHWA, U.S. DoT

Males (North America)
	5th %	50th	95th
Stature	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">5′ 3 ⁵⁄₈</span>″ 161.5 ㎝	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">5′ 8 ¹⁄₄</span>″ 173.5 ㎝	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">6′  ³⁄₄</span>″ 185 ㎝
Eye height	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">5′  ³⁄₄</span>″ 154 ㎝	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">5′ 4 ³⁄₄</span>″ 164 ㎝	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">5′ 8 ⁵⁄₈</span>″ 174 ㎝
Sitting height	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">2′ 9 ¹⁄₄</span>″ 84.5 ㎝	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">2′ 11 ³⁄₄</span>″ 90.5 ㎝	3′ 2″ 96.5 ㎝
Body width	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">1′ 6 ³⁄₄</span>″ 48 ㎝	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">1′ 8 ⁷⁄₈</span>″ 53 ㎝	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">1′ 10 ³⁄₄</span>″ 58 ㎝

Females (North America)
	5th %	50th	95th
Stature	4′ 11″ 150 ㎝	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">5′ 2 ⁷⁄₈</span>″ 160 ㎝	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">5′ 7 ¹⁄₈</span>″ 170.5 ㎝
Eye height	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">4′ 9 ¹⁄₄</span>″ 146 ㎝	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">5′  ¹⁄₄</span>″ 153 ㎝	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">5′ 5 ¹⁄₄</span>″ 166 ㎝
Sitting height	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">2′ 6 ⁷⁄₈</span>″ 78.5 ㎝	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">2′ 9 ³⁄₈</span>″ 85 ㎝	<span data-sort-value="Expression error: Unrecognized punctuation character "�".">2′ 11 ³⁄₄</span>″ 90.5 ㎝

When people stand normally (i.e., with some slump), eye height lowers ∼1.6″ (4.1 ㎝) for males and ∼1.2″ (3.0 ㎝) for females.

Extrapolating from the data, male/female eye height is ∼95%/∼97% of stature, and body width is ∼30% of stature.