How old in dog years is 23?

To convert human years to dog years, a common method is to multiply the human age by seven. Therefore, a 23-year-old would be approximately 161 dog years old (23 x 7 = 161). However, this method can vary based on the dog's breed and size, as larger breeds tend to age faster than smaller ones. A more accurate formula suggests that the first two years of a dog's life are roughly equivalent to 10.5 human years each, with subsequent years being about four human years each.