A span is a Biblical unit of measurement equal to 8.75 inches or 22.2 centimeters.
A span is determined by the measure of a stretched hand, from fingertip to fingertip. Like the cubit, this is a relative measurement.
A span is the measure of a half cubit. It is not mentioned often in the Old Testament. Four of the seven times it is used is in reference to the dimensions of the high priest’s breastplate.
Related Definition: cubit