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Cat Age Calculator
convert cat years to human years

Find out how old your cat is in human years with our accurate, veterinarian-approved formula. Accounts for lifestyle, life stages, breed size differences and provides personalized results.

Calculation Result

Your cat is in human years.

Life stage: .

Frequently Asked Questions

Why doesn't the "multiply by 7" rule work for cats?

Cats mature much faster in their early years than humans. A 1-year-old cat is already comparable to a 15-year-old human, not a 7-year-old child. The aging process then slows down but varies by breed, lifestyle, and weight.

How long do cats usually live?

It depends on different factors like breed, lifestyle and weight:

  • Indoor cats: 12-20 years (some reach 25+ with good care)
  • Outdoor cats: 5-10 years due to higher risks (traffic, predators, disease, etc.)
What was the age of the oldest cat?

The oldest recorded cat, Creme Puff, was 38 years old, which is approximately ~168 human years.

How accurate is this calculator?

Our calculator is based on the latest veterinary research on cat aging. While no calculator can be 100% precise (as individual cats age differently), this provides a much more accurate estimate than the traditional "multiply by 7" method as we take into consideration the breed, cat's lifestyle and weight factors.

What are the signs of aging in cats?

Typical signs include:

  • Teeth: Yellowing, tartar, or missing teeth (senior cats)
  • Coat: Thicker, coarser fur or gray patches
  • Eyes: Cloudiness or iris changes
  • Mobility: Less activity, muscle loss, or arthritis
How can I estimate my cat's age if I don't know their birthday?

We suggest checking with your vet. The following signs can give an estimate:

  • Teeth (kitten teeth vs. adult teeth, tartar buildup)
  • Muscle tone (older cats are bonier)
  • Eyes (young cats have clear eyes; seniors may show cloudiness)
Do different cat breeds age differently?

Yes, different breeds have different lifespans:

  • Long-lived breeds: Siamese, Burmese, and mixed breeds often live 15-20+ years
  • Shorter-lived breeds: Maine Coons and Bengals may have slightly shorter lifespans
When is a cat considered a senior?

Cats are "seniors" at 11+ years (equivalent to ~60 human years). They may need:

  • More vet checkups
  • Special diets (e.g., kidney support)
  • Joint care for arthritis
How can I help my cat live longer?

You can help your cat live longer by following these best practices:

  • Indoor living (reduces risks)
  • Balanced diet (high protein, low carbs)
  • Regular vet visits (vaccines, dental care)
  • Mental stimulation (toys, puzzles)
Do cats and dogs age the same way?

No! Cats age faster in their first 2 years, then slow down. Dogs follow different breed-specific curves.