Cat Age Calculator
See how old your cat is in human years and which life stage they are in.
Pets FitnessScience-backed formula
Enter your details
Fill in the fields, then calculate
Enter your cat's age.
Awaiting Data
Enter your details and tap Calculate to see your results appear here.
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ResultYour result appears here.
What it measures
Cats age fast early on, then slow down. The first year equals about 15 human years, the second adds nine more, and each year after adds about four.
Your pet's stats convert into friendly, human readable numbers.
This tool turns your cat's age into a human-equivalent figure.
How to use this calculator
- Enter your cat's age in years.
- Tap Calculate for the human equivalent.
The formula used
Year 1 = 15 \u00b7 Year 2 = +9 \u00b7 each later year = +4 human years
- cat age
- Your cat's real age in years.
Understanding Your Results
Kitten
Under 1 year
Rapid early growth.
Adult
1 to 7 years
Prime years.
Mature
7 to 11 years
Middle age.
Senior
11+ years
Senior care matters.
Tips to Improve
- Schedule yearly vet checkups.
- Adjust food to life stage.
- Keep seniors warm and comfortable.
- Watch weight as they age.
Frequently Asked Questions
About 28 in human years.
Yes, often 12 to 18 years with good care.
Around 11 years and older.
Scientific References
- American Association of Feline Practitioners. (2021). Feline Life Stage Guidelines.
- Cornell Feline Health Center. (2023). How old is your cat?