Use this Harrier puppy weight calculator to predict how big your puppy will get. Harriers are a hound breed that typically reach 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 to 2 lbs |
| 2 Months | 7 to 12 lbs |
| 3 Months | 11 to 18 lbs |
| 4 Months | 16 to 24 lbs |
| 5 Months | 20 to 30 lbs |
| 6 Months | 25 to 36 lbs |
| 7 Months | 29 to 42 lbs |
| 9 Months | 34 to 48 lbs |
| 10 Months | 38 to 54 lbs |
| 1 Year | 43 to 59 lbs |
| 1.5 Years | 45 to 60 lbs |
| 2 Years | 45 to 60 lbs |
Estimated from typical medium-breed growth curves and the Harrier'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.
Generally a healthy, hardy breed; hip dysplasia can occur.
A quality diet matched to this breed's genuinely high stamina and activity level.
The short coat needs minimal brushing.
Needs substantial daily exercise and does well with canine companionship; secure fencing matters given strong scent drive.
A scent hound similar to a smaller English Foxhound, bred for pack-hunting hare across the English countryside.
Friendly and energetic, Harriers do well with other dogs given their pack-hunting background.