27. Head breadth

 

 

 

 

 

 

 

 

 

 

 

 

 
 

 

Definition:

Maximum breadth of the head above the level of the ears.

 

Applications:

Clearance.

 

Corrections:

Add 35mm for clearance across the ears; up to 90mm for protective helmets.

 

 

Head breadth

(mm)

Men

Women

5th %ile

50th %ile

95th %ile

SD

5th %ile

50th %ile

95th %ile

SD

Hong Kong

150

160

170

7

135

150

165

8

British, Aged19-65 years

145

155

165

6

135

145

150

6

US, Aged19-65 years

145

155

165

6

135

145

155

6

Japanese adults

145

155

165

7

140

150

160

6

 

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