Dog age calculator
See your dog's age in human years, by breed or by size.
In human years
about 30
At 3 years, your Labrador Retriever is about 30 in human years.
Life stage
Adult
Settled into who they are, with routines that suit you both.
Life expectancy for the Labrador Retriever is about 11 to 13 years, so yours is in the early chapters.
Track their birthday and weight in Paww.
How this works
A dog's first year counts as about 15 human years, and the second adds about 9, so a two-year-old is roughly 24.
After that, each year adds 4 human years for small dogs, 5 for medium, 6 for large and 7 for giant dogs, because bigger dogs tend to age faster. Months in between are spread evenly across the year.
Choose a breed and we use its usual adult weight to pick the size. Small is up to 20 lb, medium 21 to 50, large 51 to 90 and giant over 90. It's a friendly rule of thumb, not a measurement, and every dog ages in their own way.
Common questions
Is one dog year really seven human years?
Not quite. Dogs grow up much faster at the start, so by their first birthday most are about as grown up as a 15-year-old person. After the second year the pace slows, and it depends on size.
Why do bigger dogs age faster?
Large and giant dogs tend to reach their senior years sooner than small dogs, so each year after two counts for a little more. Small breeds tend to have the longest life expectancy.
When is a dog considered a senior?
It depends on size. Giant dogs are often thought of as seniors from about 6, large dogs from about 7, medium dogs from about 8 and small dogs from about 10. Your vet can tell you what this stage means for your dog.
My dog is a mix. Which size should I choose?
Choose the size closest to their adult weight, or the weight you expect them to reach. Small is up to 20 lb, medium 21 to 50, large 51 to 90 and giant over 90.
How does the calculator handle mixed breeds?
Choose a named mix such as the Cavapoo, or choose "Mixed or not sure" and add up to three breeds. We use the middle of the parent breeds' adult weights to pick the size, and average their life expectancy. With no breeds added, pick the size closest to your dog's adult weight.
Does Paww keep what I enter?
No. The calculator runs in your browser and does not save or send your dog's details.