Dog breed lifespan
Beagle lifespan
Reviewed: 2026-09-08 · Model: dog-lifespan-v0.1
Direct answer
Beagle uses a 12.7-year expected baseline and 10.5 to 15.5-year starting range in dog-lifespan-v0.1 before individual adjustments.
Why size and weight matter
Beagle estimates should include adult size, body condition, activity, and chronic disease history. Weight management can be especially important for long-term mobility and metabolic risk.
Estimate your dog's lifespan
Use the calculator for a personalized educational range based on age, adult size, body condition, and health context.
Related guides
Sources and limits
Lifespan numbers on this page are traced to the listed source set or the versioned PetLifeYears model. They are educational planning ranges and do not replace veterinary advice.
- Frontiers in Veterinary Science / PMC: Life expectancy tables for dogs and cats derived from clinical data
- Scientific Reports: Life tables of annual life expectancy and mortality for companion dogs in the United Kingdom
- Companion Animal Health and Genetics / PMC: Lifespan of companion dogs seen in three independent primary care veterinary clinics in the United States
- Aging / PMC: Birth mass is the key to understanding the negative correlation between lifespan and body size in dogs
- American Animal Hospital Association: 2019 AAHA Canine Life Stage Guidelines