Similar to the dog years to human years scale, there is a scale that coverts the time someone has owned a balloon dog to human years.
The scale is add a zero for every month owned, and that's the age of your balloon dog.
Example scale:
1 month = 10 human years
2 months = 20 human years
3 months = 30 human years
Etc.
There is no difference in the scale between small, medium or large dogs.
Person 1: Aw, your balloon dog is so cute. What's his name and how old is he?
Person 2: Thanks. His name is Mello and he's 1 month old today.
Person 1: Wow. So he would be 10 if we use the balloon dog years scale . Happy birthday mello!