When Do French Bulldogs Stop Growing. French Bulldog Growing Up From 8 Weeks to 8 Months. When they get past the 12-month mark they generally fill in a good amount and stop growing after a few more months.

For example if your French Bulldog is 88 ounces at six weeks double it to get 176 ounces then double the number again to get 352 ounces. The growth of a Bully is often unnoticeable as it is very gradual. Like Ive said your French Bulldog will do the majority of their growth in their first 12 months but theyll likely get a few pounds heavier in the months after that.
They will put on muscle after that and you can expect your French bulldog to weight about 20 lbs as a full grown dog.
In terms of how tall a Frenchie is that equates to around 28 to 30 centimetres high once fully grown at 9 to 12 months old. They will put on muscle after that and you can expect your French bulldog to weight about 20 lbs as a full grown dog. Like Ive said your French Bulldog will do the majority of their growth in their first 12 months but theyll likely get a few pounds heavier in the months after that. The growth of a Bully is often unnoticeable as it is very gradual.