Collie Weight & Growth Chart

Complete weight guide with growth charts for male and female Collies from puppy to adult.

Male Adult Weight
50–75 lbs
Female Adult Weight
42–66 lbs

Collie Weight Overview

Adult Collies typically weigh between 50 and 75 pounds, with males generally being larger than females. Males average 50–75 lbs while females typically weigh 42–66 lbs.

Males weigh 60 to 75 pounds, females 50 to 65 pounds. They should appear elegant and well-proportioned. The abundant coat of the Rough variety can make them appear larger than they actually are..

Growth Chart

When Does a Collie Stop Growing?

Most Collies reach adult height of 22–26 inches by 15–24 months, with full body weight of 50–75 lbs achieved shortly after. Males fill out to 75 lbs while females reach 66 lbs.

Growth rate is influenced by genetics, diet quality, and spay/neuter timing. Moderate exercise needs of about 60 minutes daily. They enjoy long walks, play sessions, and herding activities but do not demand the intense stimulation that Border Collies require..

Is My Collie Overweight?

To determine if your Collie is at a healthy weight (50–75 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 double coat, rough (long) or smooth (short) variety coat can mask weight gain, so hands-on assessment is essential. If your Collie is overweight, work with your veterinarian to develop a safe weight loss plan. Even a 10% reduction can reduce the risk of Collie Eye Anomaly and other conditions.

Feeding Recommendation

An adult Collie's daily food intake is typically 0.8–1.5 cups of high-quality kibble, fed in two meals. Males weigh 60 to 75 pounds, females 50 to 65 pounds. They should appear elegant and well-proportioned. The abundant coat of the Rough variety can make them appear larger than they actually are.. At 50–75 lbs with energy level 3/5, a joint-supporting formula is recommended for this large-sized herding breed.

Weight by Age Table

AgeMale (lbs)Female (lbs)
3 months 13.6–16.4 11.5–14.0
6 months 30.5–37.0 25.9–31.5
9 months 44.1–53.4 37.4–45.5
12 months 54.3–65.7 46.0–55.9
18 months 64.5–78.0 54.7–66.4
24 months 67.9–82.1 57.6–69.9

Frequently Asked Questions

Males: 50–75 lbs. Females: 42–66 lbs. Males weigh 60 to 75 pounds, females 50 to 65 pounds. They should appear elegant and well-proportioned. The abundant coat of the Rough variety can make them appear larger than they actually are.. Consult your vet for a personalized assessment.
The Collie reaches full adult size (22–26 inches, 50–75 lbs) by approximately 18–24 months. Moderate exercise needs of about 60 minutes daily. They enjoy long walks, play sessions, and herding activities but do not demand the intense stimulation that Border Collies require.. Early spay/neuter may slightly delay growth plate closure in this large-sized breed.
Three quick checks for your Collie: (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: 50–75 lbs. Their double coat, rough (long) or smooth (short) variety coat can make visual assessment harder, so hands-on rib checks are especially important. Consult your vet for a body condition score.
Feeding amounts depend on age, current weight, and the Collie's expected adult size of 50–75 lbs. Puppies under 6 months need 3–4 meals daily; older puppies eat twice daily. For this large-sized breed, a large-breed puppy formula helps control growth rate and protect developing joints. Collie Eye Anomaly and MDR1 drug sensitivity are the hallmark health concerns. All breeding stock should be genetically tested. Dermatomyositis is another breed-specific condition to watch for..
If your Collie puppy isn't gaining weight as expected (target adult weight: 50–75 lbs), consult your vet. Common causes include intestinal parasites, insufficient calorie intake, or malabsorption. The breed's predisposition to Collie Eye Anomaly could also be a factor worth investigating. A fecal test and blood work are typically the first diagnostic steps.