Free tool

How big will my Border Terrier get?

An adult Border Terrier weighs 13 to 15.5 pounds for males and 11.5 to 14 pounds for females (5.9 to 7 kg for males and 5.2 to 6.4 kg for females), according to the American Kennel Club. Put in your puppy’s age and weight to see where they’re heading.

Border Terrier puppy weight calculator

Border Terrier adult weight

PoundsKilograms
Male13 to 15.5 pounds5.9 to 7 kg
Female11.5 to 14 pounds5.2 to 6.4 kg

Adult weight from the American Kennel Club’s Border Terrier breed page, checked 1 October 2026. Individual dogs vary, and a healthy weight for your dog is one for your vet to judge.

How the estimate works

The calculator takes your puppy’s weight, divides it by their age in weeks, and multiplies by 52. It’s a quick guide, not a growth chart: puppies gain fast early on and slow down as they near adult size, so the answer shifts as they grow. That’s why the result is shown next to the breed’s adult weight. If the two disagree, trust the breed’s weight and your vet.

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