Large13.1 yr avg
Labrador Retriever
AKC · Sporting
Open breed guideBreed-specific · Science-backed
How old is your dog, really?
Forget the 7-year rule. We use the UCSD 2019 epigenetic clock and breed-level lifespan data from the Royal Veterinary College to tell you exactly where your dog sits in its life — not a guess.
Preview using the UCSD 2019 epigenetic clock. Breed-specific results on the full calculator.
In human years
49
years old
From the journal
Built on primary research,
written for dog people.
Breed depth
200 breeds,
each with real data.
The science, not the myth
The 7-year rule is a fiction.
DNA methylation is the truth.
In 2019, researchers at UCSD mapped the canine epigenetic clock — the chemical record of aging written on a dog's DNA. It replaces a myth we've told ourselves for a hundred years with something measurable.
Every tool, one place
Eight calculators, built on the same science.
Know your dog better,
live longer together.
Start with your dog's accurate age in human years. The rest — lifespan, senior care, breed-specific health — follows.
