Exodus 39:9

It was square when folded over double, a span long and a span wide.

Note The breastpiece, when folded over, was approximately 9 inches or 22.9 centimeters in both length and width.

It was foursquare; they made the breastplate double: a span was the length thereof, and a span the breadth thereof, being doubled.

It was square. They made the breastplate double. Its length was a span, and its width a span, being double.

Note A span is the length from the tip of a man’s thumb to the tip of his little finger when his hand is stretched out (about half a cubit, or 9 inches, or 22.8 cm.)

It was foursquare; they made the breastplate double: a span was the length thereof, and a span the breadth thereof, being double.