How long do dogs live?
Dogs have a median lifespan of 12.5 years, based on the 2024 Scientific Reports study of 584,734 UK dogs across 155 breeds (McMillan et al.). Size, skull shape and sex all affect how long a breed lives. Use the database above to filter 100 breeds by size and sort by lifespan.
Longest-lived dog on record
Bluey, an Australian Cattle Dog, lived 29.5 years and died on November 14, 1939. He is the Guinness World Record holder and worked herding cattle and sheep for nearly two decades.
| Breed ↕ | Size ↕ | Lifespan ↕ | Median ↕ | Key Health Risks | Skull Shape ↕ |
|---|
Body Size
Larger dogs tend to die younger. In the 2024 UK study, large breeds had about a 20% higher risk of a shorter life than small breeds, and small long-nosed breeds had the highest median lifespan (13.3 years).
Impact: Giant breeds: ~6–10 yrs vs toy breeds: ~12–16 yrsSkull Shape (Brachycephaly)
Flat-faced breeds (French Bulldogs, Bulldogs, Pugs) are prone to breathing difficulty, overheating, spinal problems and sleep apnea. In the 2024 study they had a 40% higher risk of a shorter life than medium-nosed breeds, with a median of 11.2 years.
Impact: Flat-faced: 40% higher risk of shorter lifeWeight & Obesity
A Banfield-data study of 50,000+ neutered dogs across 12 breeds (German et al., J Vet Intern Med, 2018) found overweight dogs lived up to 2.5 years less than dogs at ideal weight; the gap varied widely by breed. The Association for Pet Obesity Prevention estimated 59% of US dogs were overweight or obese in 2022.
Impact: Overweight: up to −2.5 years (breed-dependent)Spay / Neuter
In the UK study females lived slightly longer than males (12.7 vs 12.4 years). Neutering effects on lifespan vary by sex and breed, and neutered dogs are more likely to become overweight, which works against longevity.
Impact: Effect varies by sex and breedDiet Quality
A complete diet suited to life stage, fed in measured portions, supports organ health, immune function and a lean body condition — the most controllable factor in this list.
Impact: Right food, right portions: lean body conditionDaily Exercise
Regular exercise helps maintain a healthy weight and supports joints and the heart. It also supplies mental stimulation, which matters most for working breeds such as Border Collies.
Impact: Active dogs: better weight and joint healthVeterinary Care
Regular check-ups catch cancer, organ disease, dental disease and joint problems earlier. Dental disease is very common — the American Veterinary Dental College cites around 80% of dogs showing signs by age 3.
Impact: Early detection improves outcomesGenetics & Breeding
Evidence on crossbreeds is mixed. In the UK study purebreds had a median of 12.7 years and crossbreeds 12.0, though that study defined crossbreed as any non-Kennel-Club-breed dog. Health screening of breeding stock (hips, eyes, heart) is the clearer lever.
Impact: UK study: purebred 12.7 vs crossbred 12.0 yrsSources and method
Sources: McMillan KM et al. “Longevity of companion dog breeds: those at risk from early death.” Scientific Reports 14, 531 (2024) — 584,734 UK dogs, 155 breeds. · German AJ et al. “Association between lifespan and body condition in neutered client-owned dogs.” J Vet Intern Med (2018). · Association for Pet Obesity Prevention 2022 survey. · AKC and breed-club health data. · PetMD breed profiles.
Method note: Where the 2024 study reports a breed’s median (e.g., Labrador 13.1, Cocker Spaniel 13.3, Jack Russell 13.3, Cavalier 11.8, Miniature Dachshund 14.0, Lancashire Heeler 15.4, Tibetan Spaniel 15.2, Cane Corso 8.1), that figure is used. For other breeds, the median is the midpoint of the published range and is an estimate. Individual dogs may live significantly longer or shorter. Published by lifeatherpaw.com
