arcanepsyche t1_ja3zzkm wrote

Considering by 6 months old, most dogs can reproduce, we can align human puberty of about 13 years old to .5 years. And then, most dogs are also fully grown by 1 year, so we can align that to about 22 years of human age.

Dogs have a big growth spurt at the beginning of their life, sort of slowly age for a few years, and then quickly grow "old" after the 10 year mark, so this graph is probably more accurate: