Jeremiah 52:21

Each pillar was eighteen cubits tall and twelve cubits in circumference; each was hollow, four fingers thick.

Note Each pillar was approximately 27 feet high and 18 feet in circumference (8.2 meters high and 5.5 meters in circumference).

Note 4 fingers is approximately 2.9 inches or 7.4 centimeters.

And concerning the pillars, the height of one pillar was eighteen cubits; and a fillet of twelve cubits did compass it; and the thickness thereof was four fingers: it was hollow.

Note fillet: Heb. thread

As for the pillars, the height of the one pillar was eighteen cubits; and a line of twelve cubits encircled it; and its thickness was four fingers. It was hollow.

Note A cubit is the length from the tip of the middle finger to the elbow on a man’s arm, or about 18 inches or 46 centimeters.

And as for the pillars, the height of the one pillar was eighteen cubits; and a line of twelve cubits did compass it; and the thickness thereof was four fingers: it was hollow.