Cat Lifespan Guide
How Long Do Devon Rexs Live?
Lifespan, life stages, human years equivalent, and expert tips to help your Devon Rex thrive for as long as possible.
Average Lifespan
9–15 years
Senior years begin around age 6
Devon Rex Life Stages
Kitten · 0–6 months
Rapid growth, vaccination schedule, prime socialization window.
Junior · 6–24 months
Sexual maturity, reaching full size, high energy and curiosity.
Adult · 2–6 years
Prime health years — stable temperament and consistent energy levels.
Mature · 6–9 years
Metabolism slows, joint care becomes important, bi-annual vet visits advised.
Senior / Geriatric · 9+ years
Comfort care focus, increased vet monitoring, softer food may be needed.
Devon Rex Age in Human Years
| Devon Rex Age | Human Years (approx.) |
|---|---|
| 1 year | ≈ 15 human years |
| 2 years | ≈ 24 human years |
| 3 years | ≈ 28 human years |
| 5 years | ≈ 36 human years |
| 7 years | ≈ 44 human years |
| 10 years | ≈ 56 human years |
| 12 years | ≈ 64 human years |
| 15 years | ≈ 76 human years |
How to Help Your Devon Rex Live Longer
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Keep them indoors
Indoor cats live on average 10–15 years longer than outdoor cats due to reduced exposure to disease, predators, and accidents.
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Feed the right amount
Devon Rexs need 150–250 kcal/day. Obesity is the #1 preventable cause of shortened feline lifespan.
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Daily play
45 minutes of interactive play daily supports healthy weight, mental stimulation, and cardiovascular health.
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Dental care
Dental disease affects over 70% of cats by age 3. Weekly brushing or dental treats prevent bacteria reaching vital organs.
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Annual vet visits
Cats hide illness well. Annual exams catch problems before they become serious. Senior cats benefit from twice-yearly check-ups.
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Keep vaccinations current
Core vaccines protect against diseases that significantly shorten feline lifespans. Ask your vet about the right schedule.
Devon Rex Age Calculator
Convert your Devon Rex's age into human years.
Enter an approximate date if you're unsure.
Frequently Asked Questions
How long do Devon Rexs live?
The average lifespan of a Devon Rex is 9–15 years, with a typical average of around 12 years. Indoor cats generally live significantly longer than outdoor cats.
How old is a 10-year-old Devon Rex in human years?
A 10-year-old Devon Rex is approximately 56 human years old. Cats age fastest in their first two years, then add roughly 4 human years for each subsequent year.
How can I help my Devon Rex live longer?
Key factors: keep your cat indoors, feed a measured diet (150–250 kcal/day), provide 45 min of daily play, schedule annual vet check-ups, maintain dental hygiene, and keep them at a healthy weight of 2.7–4.5 kg.