How big does a West Highland White Terrier get?

A full-grown West Highland White Terrier typically stands 25–28 cm (9.8–11.0 inches) tall at the shoulder and weighs 6–9 kg (13.2–19.8 lbs). West Highland White Terrier is a small breed and usually reaches full size by 12 months.

What is the lifespan of a West Highland White Terrier?

The average lifespan of a West Highland White Terrier is 13–15 years. Smaller breeds tend to live longer than larger breeds. Maintaining a healthy weight is one of the most important factors in extending your dog's lifespan — overweight dogs can lose 1–2 years of life expectancy.

What are the personality traits of a West Highland White Terrier?

West Highland White Terrier are known for being friendly, alert, active, confident. They are generally good with children and make excellent family dogs. They are moderately trainable with consistent positive reinforcement. Their size and energy level make them suitable for apartment living.

Is a West Highland White Terrier a good choice for apartments and families?

Yes, a West Highland White Terrier can adapt well to apartment living due to their small size and moderate energy levels. They are generally good with kids and make great family companions. Be prepared for significant shedding — regular brushing 2–3 times per week is recommended.

What are common health issues for small breed dogs like the West Highland White Terrier?

Small and toy breeds like the West Highland White Terrier are prone to dental disease, patellar luxation (knee issues), tracheal collapse, and hypoglycemia. They can also develop heart valve disease as they age. Keeping your dog at an ideal weight is the single most effective way to reduce the risk of many of these conditions. Use our BCS assessment tool above to check your dog's condition.

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West Highland White Terrier Weight & Calorie Guide

Q: How many calories does a West Highland White Terrier need per day?

A typical adult West Highland White Terrier weighing about 8 kg needs approximately 508–634 kcal per day, depending on activity level and neuter status. Puppies and very active dogs need more, while seniors and neutered dogs need less. Use our breed-specific calculator for an exact number.

Small Breed

Quick Answer

A healthy adult West Highland White Terrier weighs 6–9 kg (13.2–19.8 lbs), according to the AKC breed standard. Puppies reach 50% of adult weight by 4–5 months and full weight by 9–10 months.

Source: AKC breed standard, WSAVA nutrition guidelines

Quick Facts

Ideal Weight

6–9 kg

(13.2–19.8 lbs)

Size Category

small

Breed Type

Daily Calories

~508–634 kcal

Adult, neutered

Free Tools

BCS Assessment Calorie Calculator

Ideal Weight Range

6 kgto9 kg

13.2 lbsto19.8 lbs

UnderweightIdealOverweightObese

Data:AKC breed standard·WSAVA guidelines

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Puppy Weight Predictor

For puppies under 12 months. Enter your puppy's current weight and age to predict adult weight.

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How the puppy weight predictor works

This predictor uses growth milestone data from Salt et al. (2017), published in Veterinary Record, which tracked the weight development of dogs across five size categories from birth to adulthood. By comparing your puppy's current weight against the expected growth percentage for their age and size category, we estimate their adult weight range.

Factors that affect adult weight

Genetics play the largest role, but nutrition, neutering status, and overall health also influence growth rate. Puppies fed excessive calories during rapid growth phases may exceed their genetic weight potential, while underfed puppies may not reach it. Large and giant breeds grow more slowly than toy and small breeds, reaching full size at 18–24 months rather than 10–12 months.

Data source: Salt et al. (2017) "Growth patterns of commercial kennel dogs" Veterinary Record • AKC breed standards

West Highland White Terrier Health & Weight Management

West Highland White Terriers are sturdy, confident small terriers with a distinctive white coat. Originally bred for hunting vermin, they have surprising endurance and a strong prey drive. Westies are prone to allergic skin disease (atopic dermatitis) — excess weight worsens inflammation and makes skin fold irritation more likely. Patellar luxation and craniomandibular osteopathy are also breed concerns.

Exercise: 30–40 minutes of daily exercise — brisk walks, digging games, and secure off-leash running. Westies love to chase, so always keep them on-leash in unfenced areas. They enjoy earthdog trials and small-ground agility.

Feeding tips: Westies are enthusiastic eaters and will work hard for food rewards. Measure portions with a kitchen scale. Choose a formula appropriate for active small breeds. Limit treats to 10% of daily intake. If your Westie has skin allergies, consider a limited-ingredient diet.

Keeping your Westie at a healthy 13–20 lbs (6–9 kg) supports skin and joint health. Use PawScale’s calorie calculator for Westies to set daily limits, check body condition with our BCS assessment, and follow the crate size calculator.

Data source: AKC breed standard

Data source: AKC breed standard • Last updated: 2026-08-12

Is your West Highland White Terrier at a healthy weight?

59% of dogs are overweight — can you tell? Take our free 2-minute Body Condition Score assessment.

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West Highland White Terrier Calorie Calculator

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Frequently Asked Questions

How much should a West Highland White Terrier weigh?

The ideal weight for a West Highland White Terrier is 6–9 kg (13.2–19.8 lbs). Even a small weight gain can be significant for smaller breeds. Use our calorie calculator above to get personalized feeding recommendations.

How many calories does a West Highland White Terrier need per day?

A typical adult West Highland White Terrier weighing 8 kg needs approximately 508–634 kcal per day, depending on activity level and whether they are neutered. Use our breed-specific calculator above for an exact number based on your dog's details.

Is my West Highland White Terrier overweight?

59% of dogs are overweight, and most owners cannot tell just by looking. Check your West Highland White Terrier's Body Condition Score (BCS) — if you can't easily feel their ribs or they have no visible waist from above, they may be overweight. Take our free 2-minute BCS assessment above to find out.

When does a West Highland White Terrier reach full adult weight?

West Highland White Terrier puppies reach 50% of their adult weight by 4–5 months and typically reach full adult weight by 9–10 months, according to AKC growth guidelines. Small breeds mature faster than large breeds.

What size crate does a West Highland White Terrier need?

A West Highland White Terrier typically needs a 24-inch crate based on breed size. Use PawScale's free crate size calculator for a personalized recommendation.

References & data sources

1. AKC Official Breed Standard — West Highland White Terrier. akc.org

2. Salt C, et al. “Estimating the expected growth of dogs.” Vet Record, 2017;180(15):376.

3. National Research Council. Nutrient Requirements of Dogs and Cats. National Academies Press, 2006.

4. Laflamme DP. “Development and validation of a body condition score system for dogs.” Canine Practice, 1997;22(4):10–15.

5. WSAVA Global Nutrition Guidelines; Association for Pet Obesity Prevention (APOP) 9-point BCS scale.

Last reviewed: September 2026

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