Cat lifestyle guide

Indoor cat lifespan

Reviewed: 2026-09-08 · Model: cat-lifespan-v0.1

Direct answer

In cat-lifespan-v0.1, an indoor lifestyle adds a bounded positive adjustment of 0.7 years before final clamping and profile-specific factors are applied.

What indoor living changes

Indoor cats can avoid many outdoor hazards, but indoor status is not a guarantee. Weight, dental health, chronic disease, enrichment, stress, and preventive care still shape the lifespan range.

Use the range for planning

PetLifeYears treats indoor lifestyle as one factor among several. Enter current age, breed, body condition, neuter status, activity, and known health details to estimate remaining years together.

Estimate your cat's lifespan

Use the calculator for a personalized educational range based on age, lifestyle, 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.