Norfolk Terrier Puppy Weight Calculator

Calculate the adult weight for your Norfolk Terrier. Just type your puppy’s current weight and age, and see how big your puppy gets.

Norfolk Terrier Breed Profile

Breed Overview

The Norfolk Terrier, originally developed in East Anglia, England, is one of the smallest working terriers. Bred for hunting vermin, this spirited breed is known for its tenacity, alertness, and affectionate personality. Despite its compact size, the Norfolk Terrier is bold and full of energy, making it a favorite among city and country dwellers alike.

Norfolk Terriers are small, sturdy, and low-maintenance, with a wiry, weather-resistant coat and a distinctive folded ear shape. They’re highly social dogs that thrive on companionship and are generally good with children and other pets. Their lively demeanor makes early socialization and consistent training essential.

Size Category: Small

As a small breed, the Norfolk Terrier’s growth trajectory is relatively quick and compact. Tracking their weight from puppyhood is important to ensure proper development and to detect any potential health concerns early, especially given their active metabolism and energetic lifestyle.

Norfolk Terrier Growth Chart & Weight Ranges

Age	Average Weight (lbs)	Notes
4 weeks	1.5 – 2.5	Nursing or starting weaning
8 weeks	2.5 – 4	Ready for new homes
12 weeks	4 – 5.5	Rapid growth stage
4 months	5 – 6.5	Teeth coming in
6 months	6.5 – 8	Nearing adult proportions
9 months	7 – 9	Growth slowing down
12 months	8 – 11	Typically full-grown

Gender Differences:
Males generally weigh slightly more than females, often reaching 10–11 lbs at full maturity, while females may top out at 8–10 lbs.

How Much Bigger Will My Norfolk Terrier Puppy Get?

Norfolk Terriers experience rapid growth during the first six months of life. Most will reach about 50% of their adult weight by 12 weeks and about 80% by 6 months. By their first birthday, most Norfolk Terriers have reached their full height and weight, though they may continue to fill out slightly in muscle and chest over the next few months.

Rule of Thumb:
Double your Norfolk Terrier puppy’s weight at 16 weeks to estimate their adult size. For example, a 5-lb puppy at 16 weeks will likely weigh around 10 lbs as an adult.

Exceptions:
Unlike larger breeds that may take up to 2 years to fully mature, small breeds like the Norfolk Terrier usually complete their physical growth by 10–12 months.

For more detailed information on Norfolk Terrier care and growth, consult breed standards and veterinary guidance from trusted sources like the American Kennel Club (AKC) or The Kennel Club UK.

Norfolk Terrier Growth Tips

Nutrition

Feed a high-quality puppy food formulated for small breeds to support rapid early growth and high energy needs. Follow the recommended feeding schedule:

• 8–12 weeks: 4 meals/day
• 3–6 months: 3 meals/day
• 6–12 months: 2 meals/day

Avoid overfeeding, as Norfolk Terriers can be prone to weight gain when not properly exercised.

Exercise

These dogs are energetic and curious, but their small size means they don’t need excessive exercise. Provide:

• Short walks (15–30 minutes twice daily)
• Safe playtime in fenced areas
• Avoid intense jumping or agility training for 6 months to protect developing joints.

Health Watch

While generally healthy, Norfolk Terriers can face growth-related issues such as:

• Patellar luxation (dislocated kneecap)
• Obesity, especially if overfed or under-exercised
• Dental crowding, common in small breeds