Dog & Cat Years to Human Years
Instantly convert dog years to human years and cat years to human years. Discover your pet's age in human years, check average dog and cat lifespan, and get expert health tips.
Dog Age Calculator & Cat Age Chart
Use this free tool to convert dog years and cat years to human years. Understand canine years, average cat lifespan, and more. Perfect for pet owners who wonder, "How old is my dog in human years?" or "What is my cat's age in human years?"
How Pet Age Calculation Works
Converting pet years to human years is more complex than the old "multiply by 7" rule. Different animals age at different rates, and even within species, factors like breed and size affect aging.
Dogs
Small dogs tend to live longer than large dogs, so their aging is calculated differently. A small dog's first year equals about 15 human years, while the second year adds about 9 more. After that, each dog year equals about 4-5 human years. For large breeds, aging accelerates after middle age.
Cats
Cats age rapidly in their first two years (about 15 human years for the first year, 9 for the second), then slow down to about 4 human years for each cat year thereafter.
Other Pets
Small mammals like hamsters and rabbits have different aging patterns. Our calculator provides approximations based on scientific research for various pet types.
Pet Age Calculator FAQ
How do you convert dog years to human years?
The old rule of multiplying dog years by 7 is outdated. Our dog age calculator uses modern formulas that consider breed and size, giving you a more accurate conversion from dog years to human years.
How long do dogs live?
The average dog lifespan is 10-15 years, but it varies by breed and size. Small dogs often live longer than large breeds.
How do you convert cat years to human years?
Cats age rapidly in their first two years, then more slowly. Our calculator helps you find your cat's age in human years using the latest cat age chart.
What is the average cat lifespan?
The average cat lifespan is 12-18 years, but many cats live into their twenties with proper care.
What are canine years?
Canine years refer to a dog's age measured in human-equivalent years. Our tool helps you easily convert dog to human years.
How Our Dog & Cat Age Calculator Works
Our pet age calculator uses up-to-date formulas for dog years to human years and cat years to human years. It considers breed, size, and species to give you the most accurate results.
- Enter your pet's age and select the species (dog, cat, etc.)
- For dogs, select the breed for a more precise calculation
- See your pet's age in human years, average lifespan, and health tips