How to measure belly bars

Belly bar measurement

Belly bars are measured in a straight line (not along the curve as this can vary between manufacturers) from the base of the top ball to the top of the bottom ball.

Millimetres to Inches Converter

mmApprox. inches
6mmJust under 1/4"
8mm5/16"
10mmJust over 3/8"
12mmJust under 1/2"