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Male & Female Japanese Spitz Weights & Heights by Age

| Published on April 12, 2024

The Japanese Spitz, a small and spirited dog breed, is celebrated for its snow-white, plush coat and friendly demeanor. Characteristically, they possess a fox-like face with alert, triangular ears and a feathery tail that curls over their back. On average, the height of a Japanese Spitz ranges from 30 to 38 centimeters at the shoulder, making them a compact companion ideal for different living environments. Their weight typically lies between 5 to 10 kilograms, reflecting their dense but manageable build. This breed’s size contributes to its agility and vivacity, making it a popular choice for families and individuals alike.

Male Japanese Spitz Weights & Heights by Age

The following chart contains the average weights and heights of male Japanese Spitz from newborn to 3 years of age. Please note these are only averages. Always consult with your veterinarian if you have any concerns about your Japanese Spitz’ growth.

Age (Months) Average Weight (lbs/kg) Average Height (in/cm)
0 1.1 lbs / 0.5 kg 4 in / 10 cm
1 2.2 lbs / 1 kg 5 in / 13 cm
2 4.4 lbs / 2 kg 6 in / 15 cm
3 6.6 lbs / 3 kg 8 in / 20 cm
4 8.8 lbs / 4 kg 9 in / 23 cm
6 11 lbs / 5 kg 10 in / 25 cm
9 13 lbs / 6 kg 11 in / 28 cm
12 15 lbs / 7 kg 12 in / 30 cm
24 (2 years) 17 lbs / 8 kg 14 in / 36 cm
36 (3 years) 17 lbs / 8 kg 14 in / 36 cm

Female Japanese Spitz Weights & Heights by Age

The following chart contains the average weights and heights of female Japanese Spitz from newborn to 3 years of age. Please note these are only averages. Always consult with your veterinarian if you have any concerns about your Japanese Spitz’ growth.

Age (Months) Average Weight (lbs/kg) Average Height (in/cm)
0 0.88 lbs / 0.4 kg 4 in / 10 cm
1 1.76 lbs / 0.8 kg 5 in / 12 cm
2 3.5 lbs / 1.6 kg 6 in / 14 cm
3 5.5 lbs / 2.5 kg 7 in / 18 cm
4 7.7 lbs / 3.5 kg 8 in / 21 cm
6 9.9 lbs / 4.5 kg 10 in / 24 cm
9 11 lbs / 5 kg 10 in / 26 cm
12 13 lbs / 6 kg 11 in / 28 cm
24 (2 years) 15 lbs / 7 kg 12 in / 30 cm
36 (3 years) 15 lbs / 7 kg 12 in / 30 cm

These tables are based on general guidelines and can vary greatly depending on individual dogs. Always consult with a veterinarian or professional breeder for more specific information about your pet’s growth and development.

FAQs about a Japanese Spitz Puppy’s Growth and Development

1. What should I expect in terms of growth during the first year of my Japanese Spitz puppy?
During the first year, your Japanese Spitz will experience rapid growth. They typically reach close to their adult height by around 6-9 months and continue to fill out in muscle and coat until about 12 months. Expect significant changes in both weight and height throughout this period.

2. How much should a 3-month-old Japanese Spitz puppy weigh?
At 3 months old, a Japanese Spitz puppy usually weighs between 6.6 lbs (3 kg). This can vary slightly depending on the puppy’s diet, health, and genetic background.

3. What is the average height of a Japanese Spitz at 6 months?
By 6 months, a Japanese Spitz puppy generally stands around 10 inches (25 cm) tall at the shoulder. They may continue to grow slightly taller over the next few months.

4. How can I tell if my Japanese Spitz is overweight?
Check if you can feel your puppy’s ribs without pressing too hard; they should be palpable under a small amount of fat. Overweight puppies may show less definition in the waist, and you might not be able to feel the ribs easily.

5. Is it normal for a Japanese Spitz to gain weight rapidly?
Rapid weight gain can occur, especially during the peak growth phases around 2-4 months. However, it’s important to monitor their diet and ensure the weight gain is proportional to their growth in height to avoid obesity.

6. What is the expected adult weight and height of a male Japanese Spitz?
A male Japanese Spitz typically weighs about 17 lbs (8 kg) and stands about 14 inches (36 cm) tall at the shoulder when fully grown. These are averages, and some individual variation is normal.

7. How do I measure my Japanese Spitz puppy’s height accurately?
To measure your puppy’s height, have them stand squarely on a flat surface. Measure from the floor directly to the top of the shoulder (the withers), ensuring the measuring tape is perpendicular to the floor.

8. Can environmental factors affect the growth of my Japanese Spitz?
Yes, environmental factors like diet, exercise, and general care can significantly influence your puppy’s growth. Adequate nutrition and regular, appropriate exercise are crucial for healthy development.

9. What growth abnormalities should I watch for in my Japanese Spitz puppy?
Watch for signs like limping, difficulty standing after lying down, or reluctance to play, which can indicate growth abnormalities or joint issues. Early detection and veterinary consultation can prevent further complications.

10. How often should I weigh my Japanese Spitz puppy to monitor their growth?
Weigh your puppy monthly to ensure they are on a healthy growth curve. If you notice any sudden increases or decreases in weight, consult your vet.

11. What should I feed my Japanese Spitz to support optimal growth?
Feed a high-quality puppy food that is appropriate for small breed dogs. These foods are specifically formulated with the right balance of nutrients like protein, fats, and carbohydrates that are essential for growth.

12. How much food should a Japanese Spitz puppy eat each day?
The amount of food depends on the puppy’s age, size, and activity level. Generally, a Japanese Spitz puppy needs about 1 cup of dry dog food per day, divided into three meals until six months old.

13. Is it okay for my Japanese Spitz puppy to play rough with larger dogs?
While socialization is important, supervise play with larger dogs to prevent injuries. Puppies are still developing, and rough play can lead to harm.

14. At what age is a Japanese Spitz considered fully grown?
Japanese Spitz typically reach their adult size around 12 months of age. However, they may continue to fill out and gain muscle until about 18 months.

15. How does neutering or spaying affect the growth of a Japanese Spitz?
Neutering or spaying can slightly affect the growth; these puppies might grow a bit larger as the removal of sex hormones can delay the closure of growth plates in bones. It’s important to discuss the best timing with your vet.

16. Can I use growth charts for other breeds to track my Japanese Spitz’s growth?
It’s better to use breed-specific growth charts as growth rates can vary significantly between breeds, especially between small and large breeds.

17. What are common signs of developmental issues in Japanese Spitz puppies?
Lethargy, persistent diarrhea, stunted growth, or overly rapid growth can all be signs of developmental issues. Consulting with a vet if any of these are observed is crucial.

18. How can genetics influence the growth of my Japanese Spitz?
Genetics play a significant role in determining the size of your puppy. If you have access to the puppy’s parents’ sizes, this can be a good indicator of your own puppy’s expected size.

19. Why is my Japanese Spitz puppy not following standard growth patterns?
Individual variation, health issues, or nutritional deficiencies can cause deviations from typical growth patterns. If concerned, a vet visit is advisable to rule out any underlying problems.

20. What are the health risks associated with improper growth in Japanese Spitz puppies?
Improper growth can lead to skeletal problems, joint issues, and decreased mobility. Ensuring your puppy grows at a moderate rate and maintains a healthy weight is important for long-term health.

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