Boxing Weight Classes Kg. Classes are as follows. The naming convention used are those provided by the wbc and wba for the ibf and wbo naming terms please see the footnote at the bottom of the page.
Up to and including 115 lbs. Over 125 to 135 lbs. The is the lightest boxing weight at the professional level at 105 pounds or 47 627 kilograms.
Over 155 to.
4 to 8 oz. The wbc refers to it as the strawweight and the wba calls it minimumweight. 4 to 8 oz. Up to and including 115 lbs.