Collie weight by age
Typical weight by age for a Collie with an adult weight of about 68 lb (male) or 58 lb (female). The range shows where most puppies fall.
| Age | Male | Female |
|---|---|---|
| 2 months | 13 lbrange 9.0–17 lb | 11 lbrange 7.9–16 lb |
| 3 months | 21 lbrange 15–27 lb | 19 lbrange 13–24 lb |
| 4 months | 30 lbrange 23–37 lb | 26 lbrange 20–33 lb |
| 5 months | 39 lbrange 32–48 lb | 34 lbrange 28–42 lb |
| 6 months | 46 lbrange 37–55 lb | 40 lbrange 33–48 lb |
| 8 months | 56 lbrange 47–64 lb | 48 lbrange 41–55 lb |
| 10 months | 60 lbrange 51–68 lb | 52 lbrange 45–58 lb |
| 12 months | 62 lbrange 54–69 lb | 54 lbrange 47–59 lb |
Divide pounds by 2.2 for kilograms.
Adult weight
AKC breed page: 60-75 pounds (male), 50-65 pounds (female). The calculator uses about 68 lb for males and 58 lb for females as the typical adult weight.
Common questions
How much should a Collie puppy weigh at 3 months?
A typical male Collie weighs about 21 lb at 3 months (most between 15 and 27 lb). A typical female weighs about 19 lb (most between 13 and 24 lb).
How much should a Collie puppy weigh at 6 months?
A typical male Collie weighs about 46 lb at 6 months (most between 37 and 55 lb). A typical female weighs about 40 lb (most between 33 and 48 lb).
How much does a Collie weigh at 1 year?
A typical male Collie weighs about 62 lb at 12 months (most between 54 and 69 lb). A typical female weighs about 54 lb (most between 47 and 59 lb).
When does a Collie stop gaining weight?
The typical Collie puppy reaches about 90% of its adult weight around 11 months and 95% around 15 months. Large and giant breeds fill out for longer than small ones.
How accurate is the Collie weight calculator?
Across our test dogs the typical miss was about 11% of adult weight, smaller for older puppies. Your puppy can land outside the range. See the methods page.
Other breeds
Weight standard: AKC breed page. Growth curves: our analysis of open data from Salt et al. (2017), CC BY 4.0. An estimate, not veterinary advice. Methods.