Cairn Terrier
KAIRN TAIR-ee-ur
Sensible, Fearless, Cheerful, Hardy. Originally bred for hunting vermin among cairns (stone piles).
An adult Cairn Terrier weighs 13-16 lbs (male) or 12-15 lbs (female), needs 300-500 calories daily, and lives 13-15 yrs. As a small breed, every calorie and every ounce of body weight matters proportionally more. The breed's primary health watch is patellar luxation. All numbers below come from AKC breed standards and NRC 2006 veterinary nutrition formulas.
Nutrition and feeding
A typical adult Cairn Terrier needs 300 to 500 calories per day. An average male (14 lbs / 6.6 kg) needs around 400 kcal; a female (14 lbs / 6.1 kg) roughly 380 kcal. These estimates use the vet-standard RER/MER formula.
Estimate for a typical adult Cairn Terrier. For puppies, seniors, or specific activity levels, use the full calorie calculator.
Health profile
Smaller breeds generally live longer than large breeds, and the Cairn Terrier benefits from this with a life expectancy of 13-15 yrs. Their compact frames create their own set of vulnerabilities. The breed's primary health concerns are patellar luxation and cataracts, which responsible breeders screen for before breeding.
Exercise and activity
30-45 minutes of daily exercise. Enjoys walks, digging, and exploring. Active but not hyperactive. Terriers are diggers, chasers, and independent thinkers. The Cairn Terrier will investigate every hole, chase every squirrel, and test every boundary you set. Provide outlets for natural terrier behavior: digging pits, earth dog trials, agility, and puzzle toys that require problem-solving.
Care and traits
Cairn Terriers have a shaggy, weather-resistant double coat coat. Origin: Scotland (Scottish Highlands).
Toto in The Wizard of Oz was a Cairn Terrier. One of the oldest Scottish terrier breeds. They love to dig; it's in their DNA.
Their small size makes them suitable for apartment living, but they still need daily outdoor exposure and socialization. Small dogs are vulnerable to injury from rough handling, falls from furniture, and confrontations with larger animals. Supervision around young children is essential.
Tools for Cairn Terrier owners
Frequently asked questions
Plan for 300 to 500 calories per day for an adult Cairn Terrier. A 14-pound individual falls near the middle of that range. Two measured meals daily works well for most small breeds. Avoid free-feeding, as many small dogs will overeat when food is constantly available. Active dogs need more; seniors and less active individuals need less. Use our calorie calculator with your dog's actual weight for a personalized number.
Males typically weigh 13-16 lbs (5.9–7.3 kg). Females run lighter at 12-15 lbs (5.4–6.8 kg). Small dogs hide extra weight under their coat. Pick them up regularly and feel for rib coverage as your most reliable body condition check. The best home assessment is the rib test: place your thumbs on the spine and spread your fingers across the ribs. You should feel each rib individually. If you have to press to find them, the dog is carrying extra weight.
Health records for the breed show patellar luxation as the most prevalent concern in Cairn Terriers. Patellar luxation (slipping kneecap) is common in this size range. Maintaining a lean weight reduces stress on the knee joint. Moderate, consistent exercise strengthens the surrounding muscles. Severe cases may require surgical correction. Other conditions seen in the breed include cataracts, globoid cell leukodystrophy, hypothyroidism. Awareness of these breed tendencies allows for early intervention, which often improves outcomes significantly.
Plan for 30 to 45 minutes of exercise daily for your Cairn Terrier. Good activities for this breed include digging games, earth dog trials, fetch. Indoor play and training sessions count as legitimate exercise for dogs this size. While not as demanding as high-energy breeds, a Cairn Terrier that gets no exercise will gain weight and may develop behavioral issues.
Disclaimer: General breed information based on AKC standards and veterinary sources. Individual dogs vary. Calorie estimates use the RER/MER formula (NRC 2006). Consult your veterinarian for advice specific to your dog. See our sources.
Last reviewed: April 1, 2026