Dog Age Calculator

Updated November 28, 2020

Here is a vet authored converter for finding the approximate human age for your dog. It follows a complex calculation, not just 1 year per 7.

Is It That Simple?

This dog years to human years calculator gives just one answer. What about the fact that smaller dogs live longer?

As a vet, I can tell you that this is mostly a myth. In fact, today small and large dogs live about the same lifespan. Here is a link to our own clinic data.

In the article I also explain why this might have been different in the past.

The exceptions are the giant breeds, such as Dogue de Bordeaux and Great Dane. However, my view is that these dogs do not age faster, they die sooner. My reasoning is that they do not show the typical features of advanced age such as arthritis at these ‘early’ deaths.

For the published evidence about dog lifespans, visit How Long Different Dog Breeds Live.

Or if you want to learn more about dog ageing and why it isn’t just one dog year equals seven dog years, click here!

Have something to add? Comments (if open) will appear within 24 hours.
By Andrew Spanner BVSc(Hons) MVetStud, a vet in Adelaide, Australia. Meet his team here.

2 Replies to “Dog Age Calculator”

  1. Hi Andrew
    Regarding food, our Charlie is a new dog since he’s been on the right food for his colitis, for which I’m grateful. Much less messy!
    That also means he’s healthy and I reckon will last longer than the 12yrs 3mths that your life expectancy link suggests, which is up in July!

    1. Too right. Don’t forget that the ages are averages from birth, so Charlie is definitely aiming higher by now.

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