How Long Do Dogs Live by Breed?

Most dogs live 10–13 years, but breed matters more than almost anything else. A Great Dane is doing well to hit 8, while a Chihuahua often makes it past 16.

Below is what current lifespan data actually looks like across 60+ popular breeds, why size drives so much of the difference, and how to convert your dog's age into human years without falling for the "multiply by 7" myth.

Average dog lifespan by breed

These ranges come from the 2022 Kennel Club/RVC lifespan study covering 30,000+ UK dogs, cross-checked against AKC breed profiles. Individual dogs vary. A well-bred, lean, dental-healthy dog on the top end of care can beat these numbers by 2–3 years.

Toy and small breeds (under 22 lb)

• Chihuahua: 14–16 years
• Toy Poodle: 14–16 years
• Miniature Dachshund: 12–16 years
• Shih Tzu: 11–14 years
• Yorkshire Terrier: 12–15 years
• Pomeranian: 12–16 years
• Maltese: 12–15 years
• Papillon: 13–16 years
• Bichon Frise: 12–15 years
• Havanese: 13–15 years
• Jack Russell Terrier: 13–16 years
• Cavalier King Charles Spaniel: 9–12 years (mitral valve disease shortens this one significantly)
• Pug: 7–11 years (brachycephalic issues drag the average down hard)

Medium breeds (22–55 lb)

• Beagle: 12–15 years
• Cocker Spaniel: 12–14 years
• Border Collie: 12–15 years
• Australian Shepherd: 12–15 years
• Miniature Schnauzer: 12–15 years
• French Bulldog: 4.5–10 years (the RVC study put the median at 4.5, one of the lowest recorded)
• English Bulldog: 7–10 years
• Shetland Sheepdog: 12–14 years
• Whippet: 12–15 years
• Basset Hound: 10–12 years
• Brittany: 12–14 years
• Corgi (Pembroke): 12–14 years
• Standard Schnauzer: 13–16 years
• Pit Bull Terrier: 12–14 years

Large breeds (55–90 lb)

• Labrador Retriever: 11–13 years
• Golden Retriever: 10–12 years
• German Shepherd: 9–13 years
• Boxer: 9–12 years
• Siberian Husky: 12–14 years
• Standard Poodle: 12–14 years
• Rhodesian Ridgeback: 10–12 years
• Weimaraner: 11–13 years
• Doberman Pinscher: 10–12 years
• Vizsla: 12–14 years
• Chow Chow: 8–12 years
• Dalmatian: 11–13 years
• Alaskan Malamute: 10–14 years
• Chesapeake Bay Retriever: 10–13 years

Giant breeds (90+ lb)

• Great Dane: 6–8 years
• Bernese Mountain Dog: 7–10 years
• Saint Bernard: 8–10 years
• Mastiff (English): 6–10 years
• Newfoundland: 8–10 years
• Irish Wolfhound: 6–8 years
• Rottweiler: 8–10 years
• Great Pyrenees: 10–12 years
• Anatolian Shepherd: 11–13 years
• Leonberger: 8–9 years
• Cane Corso: 9–12 years
• Neapolitan Mastiff: 7–9 years

Mixed breeds

Mixes generally outlive purebreds by roughly 1.2 years on average per a 2013 UC Davis study. A mixed-breed under 22 lb often runs 14–17 years. Larger mixes tend to land near the average of their weight class.

Why small dogs outlive big ones

Big dogs age faster at the cellular level. They grow quickly, their IGF-1 (insulin-like growth factor) runs high through puppyhood, and that same growth signal is tied to earlier onset of cancer, joint disease, and heart problems. A 2013 study in The American Naturalist found that for every 4.4 lb (2 kg) of body mass, life expectancy drops by about one month.

Cancer is the biggest killer of dogs over 10, and giant breeds hit that risk window much earlier. Osteosarcoma, hemangiosarcoma, and lymphoma all skew large.

Small dogs also benefit from cheaper anesthesia, easier orthopedic surgery, and less strain on the heart and joints from body weight. It's not just genetics. It's mechanics.

Converting dog years to human years (the real formula)

The "multiply by 7" rule is wrong. Dogs mature fast in the first two years, then slow down.

A more accurate approach from a 2019 UCSD epigenetic study:

Human age = 16 × ln(dog age) + 31

Worked example for a 5-year-old Labrador: 16 × ln(5) + 31 = 16 × 1.609 + 31 = 56.7 human years

That same Lab at 10 comes out to about 68. At 12, roughly 71.

Size matters here too. A 12-year-old Chihuahua is closer to a 64-year-old human. A 12-year-old Great Dane, if it makes it there, is more like an 85-year-old.

Skip the mental math. Use the PawMath dog age calculator and it'll factor in breed size automatically.

What actually adds years

Three things move the needle more than breed selection once you already have your dog:

1. Keep them lean. A landmark 14-year Purina Lifespan Study on Labs showed lean-fed dogs lived a median of 1.8 years longer than their overfed littermates. Dial in portions with the food portion calculator.
2. Dental care. Periodontal disease is linked to heart, kidney, and liver damage. Yearly cleanings from age 3 onward matter.
3. Catch problems early. Twice-yearly vet visits after age 7 for large breeds, age 9 for small. Bloodwork catches kidney and thyroid issues years before symptoms show. If you're weighing whether to buy coverage before those senior years hit, the insurance break-even calculator shows the math.

Genetics set the ceiling. Weight, dental, and early screening decide whether your dog reaches it.

Find out your dog's real age in human years: PawMath Dog Age Calculator