American Staffordshire Terrier Weight & Growth Chart

Complete weight guide with growth charts for male and female American Staffordshire Terriers from puppy to adult.

Male Adult Weight
40–70 lbs
Female Adult Weight
34–61 lbs

American Staffordshire Terrier Weight Overview

The American Staffordshire Terrier weighs 40–70 lbs at maturity. Males (40–70 lbs) are typically heavier than females (34–61 lbs).

Males weigh 55 to 70 pounds and stand 18 to 19 inches, while females are 40 to 55 pounds, making them substantially larger than their Staffordshire Bull Terrier cousins.. The growth chart below shows the typical weight progression from puppyhood to adulthood.

Growth Chart

When Does a American Staffordshire Terrier Stop Growing?

The American Staffordshire Terrier stops growing in height (target: 17–19 inches) around 12–15 months of age, but may continue adding weight toward 70 lbs for a few more months. Males weigh 55 to 70 pounds and stand 18 to 19 inches, while females are 40 to 55 pounds, making them substantially larger than their Staffordshire Bull Terrier cousins..

Early spay/neuter can affect growth plate closure, potentially resulting in a slightly taller but leaner adult.

Is My American Staffordshire Terrier Overweight?

To determine if your American Staffordshire Terrier is at a healthy weight (40–70 lbs target):

  • Rib test: You should be able to feel the ribs without pressing hard, with a thin layer of fat covering them
  • Waist check: Viewed from above, there should be a visible waist behind the ribs
  • Tuck-up: From the side, the abdomen should tuck up behind the rib cage

Their coat type allows for relatively easy visual assessment. If your American Staffordshire Terrier is overweight, work with your veterinarian to develop a safe weight loss plan. Even a 10% reduction can reduce the risk of Cerebellar Ataxia and other conditions.

Feeding Recommendation

An adult American Staffordshire Terrier's daily food intake is typically 0.6–1.4 cups of high-quality kibble, fed in two meals. Males weigh 55 to 70 pounds and stand 18 to 19 inches, while females are 40 to 55 pounds, making them substantially larger than their Staffordshire Bull Terrier cousins.. At 40–70 lbs with energy level 4/5, Cerebellar ataxia DNA testing is essential for breeding dogs, while hip and cardiac screening help ensure long-term health in this athletic breed..

Weight by Age Table

AgeMale (lbs)Female (lbs)
3 months 15.7–19.3 13.3–16.4
6 months 34.5–42.5 29.3–36.1
9 months 50.2–61.8 42.6–52.6
12 months 62.8–77.2 53.3–65.7

Frequently Asked Questions

Males: 40–70 lbs. Females: 34–61 lbs. Males weigh 55 to 70 pounds and stand 18 to 19 inches, while females are 40 to 55 pounds, making them substantially larger than their Staffordshire Bull Terrier cousins.. Consult your vet for a personalized assessment.
Most American Staffordshire Terriers reach adult height of 17–19 inches by 12–15 months, with full body weight of 40–70 lbs achieved shortly after. Males weigh 55 to 70 pounds and stand 18 to 19 inches, while females are 40 to 55 pounds, making them substantially larger than their Staffordshire Bull Terrier cousins..
Three quick checks for your American Staffordshire Terrier: (1) Feel the ribs–they should be easily palpable under a thin fat layer. (2) View from above–there should be a visible waist behind the ribs. (3) Side profile–the abdomen should tuck up. Target weight: 40–70 lbs. Their coat type allows for relatively easy visual body condition assessment. Consult your vet for a body condition score.
Feeding amounts depend on age, current weight, and the American Staffordshire Terrier's expected adult size of 40–70 lbs. Puppies under 6 months need 3–4 meals daily; older puppies eat twice daily. A high-quality puppy food formulated for medium breeds provides the right nutrient balance. Cerebellar ataxia DNA testing is essential for breeding dogs, while hip and cardiac screening help ensure long-term health in this athletic breed..
If your American Staffordshire Terrier puppy isn't gaining weight as expected (target adult weight: 40–70 lbs), consult your vet. Common causes include intestinal parasites, insufficient calorie intake, or malabsorption. The breed's predisposition to Cerebellar Ataxia could also be a factor worth investigating. A fecal test and blood work are typically the first diagnostic steps.