How Big Do French Bulldogs Get?

French bulldogs, commonly referred to as “Frenchies,” are popular companion dogs because of their playful and affectionate temperaments. These dogs are smart, adaptable, and easy to train with the proper motivation. Other than their trademark bat ears, Frenchies resemble miniature bulldogs with their large, square heads, wrinkled noses, short, smooth coats, and muscular builds. In fact, one of their ancestors is an English bulldog. But how big do French bulldogs get? Keep reading to find out more about their different growth stages and learn just how big they can get.

French Bulldog Average Height and Weight

When people hear the word “bulldog” in French bulldog, those unfamiliar with the breed might assume these dogs are much larger than they actually are. French bulldogs are a small-dog breed, generally only reaching between 11 and 13 inches tall, with males being slightly taller on average.

However, due to their sturdy frames and heavy bones, Frenchies are surprisingly heavy for such a small dog. Most female French bulldogs weigh from 17 pounds to 24 pounds, while males weigh between 20 pounds and 28 pounds. AKC Breed Standards indicate their weight should not exceed 28 pounds.

French Bulldog Growth

Frenchies tend to grow the most quickly between 0 and 6 months. When they are born, they typically weigh between 6 and 9 ounces. By the time they are 6 months old, females should weigh between 12 and 20 pounds, while males should weigh between 15 and 22 pounds. Both males and females should be between 7 and 9 inches tall. Of course, a French bulldog’s ideal size will depend on its sex, age, and overall health.

From 6 to 12 months, their growth will begin to slow as they reach their adult size. Frenchies are considered to be fully grown by 12 to 14 months. They typically stop growing in height between 9 and 12 months old. However, most dogs, especially males, continue to put on weight and muscle until they are around 18 months old. Some breeders note that French bulldogs may continue to fill out until they reach 2 years of age.

Senior Frenchies and Weight

From ages 7 and up, senior pups may weigh less due to muscle loss from decreased activity. Weight loss can also be caused by poor absorption of nutrients. If your pup experiences any sudden drops in weight, consult a veterinarian immediately, as this can indicate an underlying health issue.

Older Frenchies are also especially prone to obesity. This can be caused by reduced physical activity and/or a slower metabolism. It is important that your dog maintains a healthy weight, as obesity can impact their heart, joints, and kidneys.

Obesity can also make breathing more difficult, regardless of your dog’s age, but particularly in senior dogs. Although not all French bulldogs have clinically significant Brachycephalic Obstructive Airway Syndrome (BOAS), veterinary experts at Tufts University warn that Frenchies are very likely to develop the issue. BOAS is caused by their shortened noses and skulls. This syndrome includes malformed nostrils, an elongated soft palate that extends into the throat, small sac-like tissues that can be pulled into the airway, and a narrow windpipe. If your dog is having difficulty breathing, seek veterinary care. A special diet and exercise regimen may be able to help your dog stay active without causing excessive stress.