British Shorthair Weight Chart
How big do British Shorthairs get? See their growth chart and ideal weight.
Quick Answer
The British Shorthair is a medium-sized cat that typically weighs 25-40 lbs. They reach full adult size by approximately 18 months. See the complete growth chart and weight milestones below.
British Shorthair Growth Chart
Is My British Shorthair a Healthy Weight?
A healthy British Shorthair 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 British Shorthair'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 British Shorthair get?
A healthy adult British Shorthair typically weighs between 25-40 lbs. They are considered a Medium breed.
When does a British Shorthair stop growing?
Most British Shorthairs reach their full adult height and weight by 18 months. However, they may continue to "fill out" with muscle for a few months after.
How much should a British Shorthair puppy weigh at 3 months?
At 3 months old, a typical British Shorthair puppy weighs approximately 8.1 lbs. Growth rates vary, so consult your vet if concerned.
How can I tell if my British Shorthair is overweight?
A healthy British Shorthair 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 British Shorthair may be overweight. Consult your vet for an accurate body condition assessment.
Official Breed Standards
For official British Shorthair size and weight standards, refer to the AKC Breed Standards. Breed standards define the ideal size range, but individual cats may vary based on genetics, diet, and overall health.