Span (unit of length)

Span is the width of a human hand, from the tip of the thumb to the tip of the pinky finger.

1 span
= 9 inches
= 0.2286 m

In Slavic language, the analogue of span is pyad (peti, пядь). It is the width from the tip of the thumb to the tip of the forefinger.

1 pyad
= 4 vershok
= 7 inches
= 0.1778 m
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