Cat Breed Comparison

American Shorthair vs British Shorthair: Key Differences

American Shorthair and British Shorthair are often confused. Compare their size, weight, lifespan, origin, temperament, and health — and learn how to tell them apart at a glance.

Quick Comparison

TraitAmerican ShorthairBritish Shorthair
SizeMedium to LargeMedium to Large
Weight8–15 lbs (3.6–6.8 kg)9–18 lbs (4–8 kg)
Lifespan12–17 years12–17 years
OriginUnited StatesUnited Kingdom

Visual Differences

Telling a American Shorthair from a British Shorthair

British Shorthairs have a rounder, more spherical head with fuller cheeks, a plusher double coat standing away from the body like sheepskin, and rounder copper or gold eyes. American Shorthairs have a broader rectangular body, a harder protective coat that lies flat, and a more elongated head with a longer muzzle and visible whisker pads.

American Shorthair Key Markers

  • Dense, short coat that lies flat against the body — each hair tapers to a fine point, giving the coat a hard protective texture developed for outdoor working life; the CFA calls it a "layer-like" coat that repels light moisture and dirt
  • Round, full face with a short muzzle, well-developed whisker pads, and a gentle curving profile with a visible stop — the head is large and broad, wider than it is long, with no flat planes
  • Large, round wide-set eyes in copper, gold, green, hazel, or blue-white odd eyes in whites — brows are prominent, giving the face an open, friendly expression described as "alert and smiling" in the CFA standard

British Shorthair Key Markers

  • Round head with full cheeks, short nose, and a visible stop between forehead and nose
  • Large, round copper or gold eyes (eye color depends on coat color)
  • Dense, plush double coat that stands away from the body — feels like thick velvet or wool

Temperament & Personality

American Shorthair

  • Even-tempered and easygoing — adapts well to changes in routine, travel, and new household members
  • Independent but affectionate — enjoys lap time on their own terms and follows owners quietly, but does not demand constant attention
  • Excellent with children and other pets — the breed’s working-cat heritage developed a calm, tolerant temperament that rarely startles or scratches
  • Moderate activity level — enjoys play sessions but settles easily into lounging; not as high-energy as Abyssinians or Bengals
  • Quiet communicator — uses soft meows and trills, rarely loud or demanding
  • Good mouser — retains strong hunting instincts from its working breed origin

British Shorthair

  • Calm and easygoing — prefers lounging to climbing or jumping
  • Affectionate but not needy; happy to share a room without demanding lap time
  • Good with children, dogs, and other cats — rarely aggressive
  • Quiet — does not meow excessively; communicates with soft chirps and glances
  • Slow to mature — takes 3–5 years to reach full physical and emotional development

Health Notes

American Shorthair

  • Hypertrophic cardiomyopathy (HCM) — the most common heart disease in American Shorthairs; regular cardiac screening recommended
  • Obesity — the breed’s moderate activity level and adaptable nature mean weight management is a priority throughout life
  • Hip dysplasia — seen more often in the larger-boned lines; maintaining lean body condition reduces symptoms
  • Dental disease — compact muzzle structure contributes to tooth crowding and gingivitis; regular dental care recommended
  • Feline lower urinary tract disease (FLUTD) — some lines show predisposition; high-moisture diet helpful as a preventive measure

British Shorthair

  • Hypertrophic cardiomyopathy (HCM) — genetic heart disease; regular cardiac screening recommended for breeding cats
  • Polycystic kidney disease (PKD) — inherited from Persian outcross ancestry; DNA testing available
  • Obesity — the breed’s low-energy, easygoing nature makes weight management a priority
  • Dental disease — brachycephalic facial structure can cause crowded teeth and gum issues
  • Hemophilia B (Factor IX deficiency) — a rare bleeding disorder known in some British Shorthair lines

This information is for educational purposes only. Always consult a veterinarian for health advice specific to your cat.

Frequently Asked Questions

How can I tell a American Shorthair apart from a British Shorthair?
British Shorthairs have a rounder, more spherical head with fuller cheeks, a plusher double coat standing away from the body like sheepskin, and rounder copper or gold eyes. American Shorthairs have a broader rectangular body, a harder protective coat that lies flat, and a more elongated head with a longer muzzle and visible whisker pads.
Are American Shorthairs hypoallergenic?
No — American Shorthairs are not a hypoallergenic breed. They have a dense coat that sheds, and they produce normal levels of the Fel d 1 protein that triggers allergies. If allergies are a concern, spend time with the individual cat first, since reactions vary from person to person.
Are British Shorthairs hypoallergenic?
No — British Shorthairs are not hypoallergenic. They produce normal levels of the Fel d 1 allergen, and their dense double coat sheds a great deal of dander and fur. Their plush coat may feel wonderful, but it releases plenty of allergens into the home. Allergy sufferers should spend time with the breed before committing.

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