Border Collie Weight Chart
How big do Border Collies get? See their growth chart and ideal weight.
Quick Answer
The Border Collie is a medium-sized dog that typically weighs 25-40 lbs. They reach full adult size by approximately 18-24 months. See the complete growth chart and weight milestones below.
Border Collie Growth Chart
Is My Border Collie a Healthy Weight?
A healthy Border Collie should have a visible waist when viewed from above, and you should be able to feel (but not see) their ribs. Proper nutrition and regular health checkups are essential for maintaining your Border Collie's ideal weight.
- ✓Ideal: Ribs easily felt, visible waist, tucked abdomen
- !Overweight: Ribs hard to feel, no waist visible, rounded belly
- ✗Underweight: Ribs, spine visible, prominent waist
Frequently Asked Questions
How big does a Border Collie get?
A healthy adult Border Collie typically weighs between 25-40 lbs. They are considered a Medium breed.
When does a Border Collie stop growing?
Most Border Collies reach their full adult height and weight by 18-24 months. However, they may continue to "fill out" with muscle for a few months after.
How much should a Border Collie puppy weigh at 3 months?
At 3 months old, a typical Border Collie puppy weighs approximately 9.8 lbs. Growth rates vary, so consult your vet if concerned.
How can I tell if my Border Collie is overweight?
A healthy Border Collie should have a visible waist when viewed from above, and you should be able to feel (but not see) their ribs through a thin layer of fat. If the waist isn't visible, ribs are hard to feel, or the belly sags, your Border Collie may be overweight. Consult your vet for an accurate body condition assessment.
Official Breed Standards
For official Border Collie size and weight standards, refer to the AKC Breed Standards. Breed standards define the ideal size range, but individual dogs may vary based on genetics, diet, and overall health.