What is the weight comparison chart for German Shepherds? When the German Shepherd is 1 month old, the male German Shepherd is about 4.18 kg and the female German Shepherd is about 3.27 kg; when 2 months old, the male German Shepherd is about 9.03 kg and the female German Shepherd is about 7.54 kg; when 3 months old, the male German Shepherd is about 14.21 kg and the female is about 7.54 kg. The German Shepherd weighs about 12.12 kilograms; at 4 months, the male German Shepherd weighs about 18.98 kilograms and the female German Shepherd weighs about 16.43 kilograms.