English Toy Spaniel Puppy Weight Calculator

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

English Toy Spaniel Growth Guide

Breed Overview

The English Toy Spaniel, also known as the King Charles Spaniel in the UK, is a charming, affectionate companion breed with royal roots tracing back to the courts of Europe. Originally bred as a lapdog for nobility, the English Toy Spaniel is known for its sweet, gentle demeanor and strong devotion to its family. It has a distinct domed head, short nose, and flowing coat, often drawing comparisons to the Cavalier King Charles Spaniel (a related but distinct breed).

This breed falls into the small-size category, typically weighing between 8 and 14 lbs as adults. Because of their compact build, growth tracking is essential to avoid under- or overfeeding during the critical development stages. Rapid weight gain can strain their tiny joints and increase the risk of heart or respiratory issues.

For additional details on breed traits and standards, visit the American Kennel Club English Toy Spaniel page.

English Toy Spaniel Growth Chart & Weight Ranges

Age	Male Weight Range	Female Weight Range
4 weeks	1.0 – 1.5 lbs	0.9 – 1.4 lbs
8 weeks	2.5 – 3.5 lbs	2.3 – 3.3 lbs
3 months	4 – 5.5 lbs	3.5 – 5 lbs
4 months	5 – 6.5 lbs	4.5 – 6 lbs
6 months	6.5 – 8.5 lbs	6 – 8 lbs
9 months	7.5 – 10 lbs	7 – 9.5 lbs
12 months	8 – 14 lbs	8 – 13 lbs

Males are usually slightly heavier by 0.5–1.5 lbs than females, especially in the later stages of puppyhood.

How Much Bigger Will My English Toy Spaniel Puppy Get?

Most English Toy Spaniels reach 50% of their adult weight by 3 months of age. Growth slows after 6 months and typically stabilizes around 10 to 12 months, though minor weight fluctuations can continue into 14 months.

Rule of Thumb:
Double your puppy’s weight at 16 weeks to estimate their adult size.

Since this is a small breed, its growth window is relatively short compared to medium or large breeds. Accurate early tracking helps ensure they are not overfed or underweight during this vital phase.

English Toy Spaniel Growth Tips

Nutrition

Feed your puppy a high-quality small-breed puppy formula that supports skeletal and immune development. These dogs thrive on:

• 3–4 small meals per day until 6 months of age
• Transition to 2 meals per day after 6–8 months
• Avoid overfeeding treats, as their small size makes them prone to weight gain

Portion control and nutrient density are more important than quantity due to their tiny stomachs.

Exercise

English Toy Spaniels need moderate daily exercise—think short walks and indoor play sessions. Puppies should avoid high-impact jumping or rough play, especially on hard surfaces, to prevent stress on developing joints.

Interactive play and gentle mental stimulation (e.g., puzzle toys) are ideal.

Health Watch

Growth-related and breed-specific concerns include:

• Patellar luxation (loose kneecaps)
• Obesity
• Mitral valve disease (a common heart condition in toy breeds)
• Syringomyelia (less common but serious)

Routine vet checkups, proper weight management, and early screening for heart and joint issues are key for long-term health.