Border Terrier Size & Weight Chart: How Big Do They Get?
Written for general planning, not medical advice — no one at Argos Paws is a veterinarian. If something is wrong with your dog right now, call your vet or the nearest emergency clinic.
Quick answer: A full-grown Border Terrier typically weighs 11-16 lb (5-7.3 kg) and stands 12-15 in (30-38 cm) tall at the shoulder; males usually weigh 13-15.5 lb (5.9-7 kg) and females 11.5-14 lb (5.2-6.4 kg). Most reach their adult size by around 9-10 months.
Photo: Samuel Cockman · CC BY 2.0 · via Wikimedia Commons
The Border Terrier is a small working terrier from the Anglo-Scottish border region, originally bred to run alongside foxhounds and go to ground after foxes. Weather-resistant and even-tempered for a terrier, they remain popular as both working dogs and companions.
| Size category | Small |
|---|---|
| Typical adult weight | 11-16 lb (5-7.3 kg) |
| Height at the shoulder | 12-15 in (30-38 cm) |
| Full grown by | 9-10 months |
| Life expectancy | 12-15 years |
Male vs female Border Terrier size
| Weight | Height | |
|---|---|---|
| Male | 13-15.5 lb (5.9-7 kg) | 12-15 in (30-38 cm) |
| Female | 11.5-14 lb (5.2-6.4 kg) | 12-15 in (30-38 cm) |
Per the AKC breed standard. Individual dogs can sit outside these ranges and still be perfectly healthy — body condition matters more than hitting a number.
Border Terrier weight chart by age (lb & kg)
Estimated weights for an average Border Terrier puppy, based on the typical growth curve for a small breed. Males usually track toward the top of each figure, females toward the bottom.
| Age | Weight (lb) | Weight (kg) |
|---|---|---|
| 2 months | ~5 lb | ~2.3 kg |
| 3 months | ~7 lb | ~3.2 kg |
| 4 months | ~9 lb | ~4.1 kg |
| 5 months | ~11 lb | ~5 kg |
| 6 months | ~12 lb | ~5.4 kg |
| 9-10 months (full grown) | 11-16 lb | 5-7.3 kg |
When does a Border Terrier stop growing?
As a small breed, Border Terriers typically reach adult weight by around 9-10 months. Smaller breeds like the Border Terrier reach full height and fill out fairly close together, so growth tends to look "done" all at once.
Use the Puppy Weight Predictor below — it's pre-loaded with the Border Terrier's growth curve, so just enter your puppy's current weight and age.
Predict your Border Terrier's adult weight
Enter your puppy's current weight and age to get an estimate based on this breed's typical growth curve.
Open the Puppy Weight PredictorHow much does it cost to feed a Border Terrier?
A typical adult Border Terrier (14 lb, average activity) needs roughly 436 kcal/day — about 0.3 lb (1.0 cups) of dry kibble per day, which works out to around $15/month at typical kibble prices. Fresh or subscription-style food usually costs more, around $174/month for the same dog. These are population-level estimates — use the calculator below for a number based on your dog's actual weight and food type, or see the Border Terrier feeding chart for puppy amounts by month.
Estimate Border Terrier food costs
Pre-filled with this breed's typical adult weight — adjust activity level and food type to get your monthly estimate.
Open the Dog Food Cost CalculatorBrowse dog food sized for a Border Terrier
Compare dry, wet, and breed-specific formulas — filter by your dog's size and life stage to narrow it down.
Browse dog food on Amazon(affiliate link)How old is my Border Terrier in human years?
The old "×7" rule doesn't hold up — small breeds like the Border Terrier age at their own rate, not a generic one. Use the calculator below, pre-set to this breed's size.
Convert your Border Terrier's age
Pre-filled with this breed's size category for a more accurate human-year estimate than a flat multiplier.
Open the Border Terrier Age CalculatorCommon health considerations
- Border Terriers are considered one of the healthier terrier breeds overall, with fewer breed-specific conditions than many purebreds.
- Canine epileptoid cramping syndrome (CECS), sometimes called “Spike’s disease,” is a rare gluten-sensitive movement disorder documented specifically in this breed.
- Hip dysplasia and patellar luxation are reported but relatively uncommon compared to many other breeds.
This is general breed-level information, not a diagnosis or a prediction for any individual dog. Talk to your vet about health screening and preventive care specific to your dog.
Is pet insurance worth it for a Border Terrier?
See a typical monthly premium for this breed and whether it would likely pay off against a major vet bill.
Border Terrier insurance costSimilar breeds
Based on energy level, living-space fit, and care needs, these breeds are closest to the Border Terrier:
Take our breed match quiz
Answer a few quick questions about your lifestyle and living space to see which breeds — not just the Border Terrier — actually fit best.
Take the Breed Match QuizFrequently asked questions
How much does a full-grown Border Terrier weigh?
A full-grown Border Terrier typically weighs 11-16 lb (5-7.3 kg), making it a small breed. Males usually weigh 13-15.5 lb (5.9-7 kg) and females 11.5-14 lb (5.2-6.4 kg). Individual dogs vary within that range depending on sex, genetics, and body condition — use the Puppy Weight Predictor above for an estimate based on your specific puppy's current weight and age.
How tall is a full-grown Border Terrier?
A full-grown Border Terrier stands 12-15 in (30-38 cm) tall, measured at the shoulder (withers).
When does a Border Terrier stop growing?
As a small breed, Border Terriers typically reach adult weight by around 9-10 months. Height typically levels off a bit before this; smaller breeds like this one fill out relatively quickly once they reach height.
Is a Border Terrier a good first dog?
It can work for a first-time owner who does their homework, but the Border Terrier isn't the automatic beginner-friendly pick either — read the exercise and grooming sections above before deciding.
How much exercise does a Border Terrier need?
Above average — plan on 45-60 minutes of real activity most days. A short walk around the block won't be enough on its own for a Border Terrier.
Is a Border Terrier good with kids?
Generally good with kids, especially with basic training and normal socialization. As with any breed, supervise younger children and teach them how to approach and handle the dog.
How much grooming does a Border Terrier need?
A moderate, manageable routine — weekly brushing covers most Border Terriers, with occasional baths as needed.