How old is your pet in human years?

Find their human age, celebrate milestones, and share a little joy.

Calculate a dog or cat’s age

Enter age in years and months or a birthday. Choose one of four dog sizes, then calculate a human-age estimate. No account needed. Save up to five pets on this device or make a share card with an optional photo.

Age guides and charts

• Cat age calculator: cat years to human years
• Dog age chart: human years by dog size
• Puppy age calculator: months to human years

Dog breed age guides

• Golden Retriever age guide
• Labrador Retriever age guide
• French Bulldog age guide
• German Shepherd age guide
• Bulldog age guide
• Poodle age guide
• Beagle age guide
• Rottweiler age guide
• Yorkshire Terrier age guide
• Boxer age guide
• Dachshund age guide
• Siberian Husky age guide
• Great Dane age guide
• Doberman Pinscher age guide
• Miniature Schnauzer age guide
• Shih Tzu age guide
• Australian Shepherd age guide
• Cavalier King Charles Spaniel age guide
• Border Collie age guide
• Maltese age guide
• Pug age guide
• Chihuahua age guide
• Bernese Mountain Dog age guide
• Cocker Spaniel age guide
• Saint Bernard age guide
• Husky age guide
• Goldendoodle age guide
• Havanese age guide
• English Springer Spaniel age guide
• Whippet age guide

Beyond the seven-year myth

Pets grow quickly in their first years, then age at different rates. Our estimates use age tables and dog size as a starting point.