We can summarize Vitruvius' system of proportions as follows:

• head=1/8(total height)
• face = 1/10(total height)
• palm=1/10(total height)
• top of breast to crown=1/6(total height)
• middle of breast to crown=1/4(total height)
  

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• bottom of chin to bottom of nostrils=1/3(face)
• bottom of nostrils to line btw eyes=1/3(face)
• line btw eyes to hairline=1/3(face)
  

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• foot=1/6(total height)

Vitruvian Men