Border Collie: Dog breed weight & growth

A Border Collie is fully grown after a maximum of 12 months. Its final weight is between 26 lbs and 44 lbs, depending on the gender.

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General information about the dog breed Border Collie:

Weight, life expectancy, size & more.

Border Collie Males:

  • Final weight: 31 lbs - 44 lbs
  • Size: 48 cm - 56 cm
  • Full-grown: from 12 months
  • Life expectancy: 10 - 17 years

Border Collie Females:

  • Final weight: 26 lbs - 42 lbs
  • Size: 46 cm - 53 cm
  • Full-grown: from 13 months
  • Life expectancy: 10 - 17 years

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Growth curve of Border Collie males:

At the age of 3 months, a Border Collie male dog should weigh between 12 - 16 lbs depending on size. At the age of 6 months, the weight of a male dog is normally between 23 - 32 lbs. 12 months after birth, a Border Collie is fully grown and should weigh between 30 - 43 lbs.

Compare the chart below, as well as the accompanying growth chart, to your Border Collie puppy/dog's weight by registering for free here.

month 2 10 lbs
month 3 16 lbs
month 4 22 lbs
month 5 28 lbs
month 6 32 lbs
month 7 36 lbs
month 8 38 lbs
month 9 40 lbs
month 10 41 lbs
month 11 42 lbs
month 12 43 lbs

Growth curve of Border Collie females:

Border Collie females weigh slightly less compared to males. At the age of 3 months the weight is about 11 - 15 lbs. After 6 months, the weight is between 19 - 31 lbs. On her first birthday, the Border Collie female weighs between 26 - 41 lbs and is another 1 months later, at the age of 1.1 years, with 26 - 42 lbs already fully grown.

month 2 9 lbs
month 3 15 lbs
month 4 21 lbs
month 5 26 lbs
month 6 31 lbs
month 7 34 lbs
month 8 36 lbs
month 9 38 lbs
month 10 39 lbs
month 11 40 lbs
month 12 41 lbs

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Latest weighings from registered Border Collie owners

Border Collie
Juna
Weight:
19.4 lbs
Age:
4.7 months
Gender:
Female
new
Border Collie
Nandor
Weight:
22.05 lbs
Age:
4 months
Gender:
Male
Border Collie
Hugo
Weight:
10.36 lbs
Age:
12 weeks
Gender:
Male
Border Collie
Dottie
Weight:
35.5 lbs
Age:
6.2 months
Gender:
Female
Border Collie
Molly
Weight:
35.5 lbs
Age:
7.2 months
Gender:
Male
Border Collie
Odin
Weight:
16.32 lbs
Age:
12.4 weeks
Gender:
Male
Border Collie
Gigi
Weight:
38.37 lbs
Age:
1 year, 3 months
Gender:
Female
Border Collie
Echo
Weight:
11.25 lbs
Age:
11.3 weeks
Gender:
Male
Border Collie
Eefje
Weight:
17.64 lbs
Age:
4.4 months
Gender:
Female
Border Collie
Astor
Weight:
17.64 lbs
Age:
4.1 months
Gender:
Male
Border Collie
ZIPFEL
Weight:
41.9 lbs
Age:
8.2 months
Gender:
Male
Border Collie
Odin
Weight:
14.33 lbs
Age:
12.4 weeks
Gender:
Male

Questions and answers about the Border Collie

How much does a Border Collie puppy weigh?

A Border Collie puppy weighs between 7 - 10 lbs at the age of 8 weeks (2 months). At the age of 16 weeks (4 months), Border Collie puppies already weigh 14 - 22 lbs. So the puppies gain up to 12 lbs within only 2 months.

How big does a Border Collie become?

A Border Collie male will usually grow between 48 - 56 cm. Border Collie Females normally grow between 46 - 53 cm.

When is a Border Collie fully grown?

Border Collie males are full grown at about 12 months, Border Collie females at about 13 months.