Desirable Body Weight Calculator CALCULATION OF IDEAL BODY WEIGHT The Desirable Body Weight calculator is not applicable to pregnant women, children under the age of 18, and competitive athletes. The tool may not be accurate for women under 4'9" (145 centimeters) or over 5'10" (178 centimeters) in height and for men under 5'1" (155 centimeters) and over 6'3" (190.5 centimeters). TO FIND OUT BODY WEIGHT Calculator Formula is = Girth in inches x Length in inches = Weight in seers 9 or 8.5 or 8 (Animal’s Girth is to be measured behind the forelegs by a Measuring Tape: Hold the tape close to the chest). Girth measurement is taken by passing the tape behind the forelegs and length is found by measuring in inches the distance from the point of shoulder to the point of buttocks. When girth is below 6...