Finding the right size collar or harness for your dog can be a daunting task, especially with the wide variety of dog breeds and sizes out there. To make things easier for dog owners, we've created a dog breed size chart that includes average neck size, girth size, and weight range for some of the most popular dog breeds. This guide will help you find the appropriate size collar or harness for your furry friend, ensuring a comfortable and secure fit.

Small breeds (up to 15 lbs / 6.8 kg):

• Chihuahua: Neck size 7.9-11.8 in / 20-30 cm, Girth size 11.8-15.7 in / 30-40 cm
• Yorkshire Terrier: Neck size 7.9-11.8 in / 20-30 cm, Girth size 11.8-15.7 in / 30-40 cm
• Toy Poodle: Neck size 9.8-13.8 in / 25-35 cm, Girth size 13.8-17.7 in / 35-45 cm
• Shih Tzu: Neck size 9.8-13.8 in / 25-35 cm, Girth size 13.8-17.7 in / 35-45 cm

Medium breeds (15-45 lbs / 6.8-20.4 kg):

• Beagle: Neck size 11.8-15.7 in / 30-40 cm, Girth size 15.7-23.6 in / 40-60 cm
• French Bulldog: Neck size 11.8-15.7 in / 30-40 cm, Girth size 15.7-23.6 in / 40-60 cm
• Border Collie: Neck size 13.8-17.7 in / 35-45 cm, Girth size 19.7-27.6 in / 50-70 cm
• Cocker Spaniel: Neck size 13.8-17.7 in / 35-45 cm, Girth size 19.7-27.6 in / 50-70 cm

Large breeds (45-80 lbs / 20.4-36.3 kg):

• Labrador Retriever: Neck size 15.7-19.7 in / 40-50 cm, Girth size 23.6-31.5 in / 60-80 cm
• German Shepherd: Neck size 17.7-21.7 in / 45-55 cm, Girth size 27.6-35.4 in / 70-90 cm
• Golden Retriever: Neck size 17.7-21.7 in / 45-55 cm, Girth size 27.6-35.4 in / 70-90 cm
• Boxer: Neck size 17.7-21.7 in / 45-55 cm, Girth size 27.6-35.4 in / 70-90 cm

Extra large breeds (over 80 lbs / 36.3 kg):

• Great Dane: Neck size 19.7-23.6 in / 50-60 cm, Girth size 31.5-39.4 in / 80-100 cm
• Saint Bernard: Neck size 21.7-25.6 in / 55-65 cm, Girth size 35.4-43.3 in / 90-110 cm
• Mastiff: Neck size 23.6-27.6 in / 60-70 cm, Girth size 39.4-47.2 in / 100-120 cm