What is 1 dog year in human years?

There's no single, universally accepted conversion for dog years to human years. It's more complex than just multiplying by a factor.

Here's why:

* Different breeds age at different rates: Smaller dogs tend to age faster than larger dogs.

* Individual variation: Just like humans, dogs can have different lifespans based on genetics, health, and lifestyle.

General guidelines are often used:

* First year: Roughly equivalent to 15 human years.

* Second year: Roughly equivalent to 9 human years.

* After the second year: Each dog year is roughly equivalent to 4-5 human years.

Example:

A 5-year-old dog would be roughly equivalent to:

* 15 (first year) + 9 (second year) + (3 years * 4.5) = 32.5 human years old

It's important to remember these are estimates. Talk to your vet for a more accurate assessment of your dog's age in human years.