Brittany Spaniel: Dog breed weight & growth
A Brittany Spaniel is fully grown after a maximum of 13 months. Its final weight is between 31 lbs and 40 lbs, depending on the gender.
Monitor the weight of your dog or puppyGeneral information about the dog breed Brittany Spaniel:
Weight, life expectancy, size & more.
Brittany Spaniel Males:
- Final weight: 31 lbs - 40 lbs
- Size: 47 cm - 52 cm
- Full-grown: from 13 months
- Life expectancy: 12 - 15 years
Brittany Spaniel Females:
- Final weight: 31 lbs - 40 lbs
- Size: 46 cm - 51 cm
- Full-grown: from 13 months
- Life expectancy: 12 - 15 years
Check, track and compare your dog or puppy's weight online now:
Register for freeGrowth curve of Brittany Spaniel males:
At the age of 3 months, a Brittany Spaniel male dog should weigh between 12 - 15 lbs depending on size. At the age of 6 months, the weight of a male dog is normally between 23 - 29 lbs. Already after one year the growth is mostly completed. A Brittany Spaniel male should now weigh between 30 - 39 lbs at the age of 12 months. Another 1 months later, at the age of 1.1 years, his growth phase is completed and he reaches his final final weight of 31 - 40 lbs.
Compare the chart below, as well as the accompanying growth chart, to your Brittany Spaniel puppy/dog's weight by registering for free here.
| month 2 | 9 lbs |
| month 3 | 15 lbs |
| month 4 | 20 lbs |
| month 5 | 25 lbs |
| month 6 | 29 lbs |
| month 7 | 32 lbs |
| month 8 | 34 lbs |
| month 9 | 36 lbs |
| month 10 | 37 lbs |
| month 11 | 38 lbs |
| month 12 | 39 lbs |
| month 13 | 39 lbs |
Growth curve of Brittany Spaniel females:
The final weight of Brittany Spaniel females is also 40 lbs, therefore the weight at the age of 3 months is also about 12 - 15 lbs. After 6 months, the weight is between 23 - 29 lbs. On her first birthday, the Brittany Spaniel female weighs between 30 - 39 lbs and is another 1 months later, at the age of 1.1 years, with 31 - 40 lbs already fully grown.
| month 2 | 9 lbs |
| month 3 | 15 lbs |
| month 4 | 20 lbs |
| month 5 | 25 lbs |
| month 6 | 29 lbs |
| month 7 | 32 lbs |
| month 8 | 34 lbs |
| month 9 | 36 lbs |
| month 10 | 37 lbs |
| month 11 | 38 lbs |
| month 12 | 39 lbs |
| month 13 | 39 lbs |
Add your dog's weight and compare it to other registered dogs:
Register for freeLatest weighings from registered Brittany Spaniel owners
Questions and answers about the Brittany Spaniel
How much does a Brittany Spaniel puppy weigh?
A Brittany Spaniel puppy weighs between 8 - 9 lbs at the age of 8 weeks (2 months). At the age of 16 weeks (4 months), Brittany Spaniel puppies already weigh 16 - 20 lbs. So the puppies gain up to 11 lbs within only 2 months.
How big does a Brittany Spaniel become?
A Brittany Spaniel male will usually grow between 47 - 52 cm. Brittany Spaniel Females normally grow between 46 - 51 cm.
When is a Brittany Spaniel fully grown?
Brittany Spaniel males are full grown at about 13 months, Brittany Spaniel females at about 13 months.