Use this Brittany puppy weight calculator to predict how big your puppy will get. Brittanys are a sporting breed that typically reaches full size by around 12-15 months.
Enter your puppy's current weight and age to predict their adult size
Estimates based on breed growth curves. Individual dogs vary with genetics and nutrition — check with your vet for a personalized read.
A practical pick for medium-sized breeds.
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| Age | Weight |
|---|---|
| Birth | 1 lbs |
| 2 Months | 5 to 8 lbs |
| 3 Months | 8 to 12 lbs |
| 4 Months | 11 to 16 lbs |
| 5 Months | 14 to 20 lbs |
| 6 Months | 17 to 24 lbs |
| 7 Months | 20 to 28 lbs |
| 9 Months | 23 to 32 lbs |
| 10 Months | 26 to 36 lbs |
| 1 Year | 29 to 39 lbs |
| 1.5 Years | 30 to 40 lbs |
| 2 Years | 30 to 40 lbs |
Estimated from typical medium-breed growth curves and the Brittany's adult weight range. Individual puppies vary — use the calculator above for a prediction based on your puppy's actual current weight.
New breed data, growth tips, and puppy-parenting insights, plus our free printable puppy growth tracker.
Brittanys are generally a healthy, long-lived breed (12-14 years), but are prone to hip dysplasia and cataracts. Ear infections are common given their floppy ears, especially in dogs that spend time in water or heavy cover.
A high-protein diet appropriate for an active sporting breed, fed twice daily; this is a genuinely high-energy dog that needs calories to match.
The wavy, medium-length coat needs regular brushing to prevent matting, especially around the ears and legs where feathering collects debris.
Brittanys are sensitive and respond poorly to harsh correction — gentle, positive-reinforcement training gets far better results than a firm hand. This is a genuinely high-energy, task-oriented breed that needs real daily exercise, not just a walk around the block.
The Brittany originated in France's Brittany province, first documented in 17th-century paintings and tapestries, developed by local poachers who valued a small, quick dog that could work close to the hunter. Unlike true spaniels that flush game, the Brittany points and holds, working more like a setter — which is why the AKC dropped "Spaniel" from the official name in 1982, even though it's still called l'épagneul Breton in France.
Brittanys hold more AKC Dual Champion titles (both a field trial and a show championship) than any other sporting breed, reflecting a breed that was never split into separate show and working lines the way many hunting breeds were.
