Always dose drugs as accurately as possible, weight tapes can be bought that are easy to wrap around your goats but until you get one use a regular tape that you would sew with and use this conversion chart.

Weight Chart for the large breed dairy goats taken from
NOT for meat, hair, Pygmy or Nigerian Dwarf breeds.  A weight chart for Pygmy goats can be found at

Measure around the heart girth, just behind the front legs. Pull Snugly