View all Large breed growth charts
Bull Terrier Growth Chart
The Bull Terrier is instantly recognizable by its egg-shaped head and muscular, compact build. These sturdy terriers grow steadily through their first year, usually reaching full physical maturity between 14 and 18 months. Expect a dense, powerful frame that keeps filling out long after the legs stop getting longer.
View weight chart (lb & kg)Calculate Your breeds.bull-terrier Puppy's Adult Weight
Enter your breeds.bull-terrier puppy's age and current weight for an estimated adult weight range.
breeds.bull-terrier weight by age
Typical male and female puppy weight ranges by age, available in lb and kg. Individual puppies may vary.
Most breeds.bull-terrier puppies approach adult weight around 18 months, although individuals may finish earlier or later.
These estimated ranges combine the breed's adult weights with a size-based growth curve. They are not measured breed-specific percentiles or health targets. Month labels are rounded approximations; use the week values for each row. How these weight ranges are calculated
breeds.bull-terrier Growth Stages
Understanding the typical growth stages helps you know what to expect as your breeds.bull-terrier puppy grows.
Neonatal
0–2 weeksPuppies are born with eyes and ears closed, relying entirely on their mother. Rapid weight gain occurs during this period.
Socialization
3–12 weeksEyes and ears open. Puppies begin to explore, play, and learn social behaviors. This is a critical period for development.
Juvenile
3–8 monthsRapid growth continues. Puppies become more independent, start teething, and develop coordination.
Adolescent
8–14 monthsGrowth rate begins to slow. Puppies reach sexual maturity and may test boundaries. Muscle mass develops.
Young Adult
14–18 monthsGrowth is nearly complete. Your puppy is filling out and approaching adult proportions.
Adult
18+ monthsYour puppy has reached their full adult size. Weight should remain relatively stable with proper nutrition.
breeds.bull-terrier FAQ
How much will my Bull Terrier puppy weigh as an adult?
Most adult Bull Terriers typically weigh 50–70 pounds, with males usually landing in the upper part of that range and females in the lower part. Individual dogs vary by bloodline and bone, so treat this as a healthy band rather than a fixed target.
At what age is a Bull Terrier fully grown?
Most Bull Terriers are physically mature between 14 and 18 months. They often look full-grown earlier, but chest and muscle keep filling in through the second year.
How accurate is a Bull Terrier puppy weight chart?
Reasonably accurate as a guide — the breed is fairly consistent, but bone structure varies noticeably between show and working lines, so puppies from stockier parents may track above the curve. Consistent weigh-ins on the same scale matter more than any single reading.
How much should a Bull Terrier puppy weigh at 12 weeks?
Check the 12-week row in the weight-by-age table above for the estimated male and female ranges. If your puppy falls well outside that band, re-check the scale, the lb/kg setting, and the age entry first — a single off reading is more common than a truly unusual puppy.
Do male and female Bull Terriers grow differently?
Males are usually a bit heavier and more muscular, while females tend to be slightly lighter and finer — but the breed's range overlaps substantially, so the difference is modest compared to giant breeds.