Male & Female Bullmastiff Weights & Heights by Age
Bullmastiffs, revered for their formidable presence and gentle disposition, are a breed that undergoes a remarkable transformation from birth to adulthood. As they transition from tiny pups to their statuesque adult stature, understanding their growth metrics becomes vital. This article will shed light on the average weights and heights of Bullmastiff puppies at various developmental stages. By charting their growth, prospective and current owners can better gauge their pup’s health, ensuring they’re on the right track. Dive in to acquaint yourself with the fascinating growth journey of these gentle giants.-
Male Bullmastiff Weights & Heights by Age
The following chart contains the average weights and heights of a male Bullmastiff 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 Bullmastiff’s growth.
Age
Weight (lbs)
Weight (kg)
Height (inches)
Height (cm)
Newborn
1.0 – 2.5
0.45 – 1.13
4 – 5
10.2 – 12.7
1 month
10 – 15
4.5 – 6.8
6 – 8
15.2 – 20.3
2 months
20 – 30
9.1 – 13.6
8 – 11
20.3 – 27.9
3 months
30 – 40
13.6 – 18.1
10 – 14
25.4 – 35.6
4 months
40 – 60
18.1 – 27.2
14 – 18
35.6 – 45.7
5 months
55 – 75
24.9 – 34
17 – 21
43.2 – 53.3
6 months
65 – 85
29.5 – 38.6
19 – 23
48.3 – 58.4
9 months
80 – 105
36.3 – 47.6
22 – 26
55.9 – 66
12 months
95 – 125
43.1 – 56.7
24 – 28
61 – 71.1
2 years old
105 – 135
47.6 – 61.2
25 – 29
63.5 – 73.7
3 years old
110 – 140
49.9 – 63.5
25 – 29.5
63.5 – 75
Female Bullmastiff Weights & Heights by Age
The following chart contains the average weights and heights of a female Bullmastiff 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 Bullmastiff’s growth.
Age
Weight (lbs)
Weight (kg)
Height (inches)
Height (cm)
Newborn
0.9 – 2.0
0.4 – 0.9
3.5 – 4.5
8.9 – 11.4
1 month
8 – 12
3.6 – 5.4
5.5 – 7.5
14 – 19
2 months
18 – 25
8.2 – 11.3
7 – 10
17.8 – 25.4
3 months
27 – 37
12.2 – 16.8
9 – 13
22.9 – 33
4 months
35 – 50
15.9 – 22.7
12 – 16
30.5 – 40.6
5 months
45 – 60
20.4 – 27.2
15 – 19
38.1 – 48.3
6 months
55 – 70
24.9 – 31.8
17 – 21
43.2 – 53.3
9 months
65 – 85
29.5 – 38.6
20 – 24
50.8 – 61
12 months
75 – 95
34 – 43.1
22 – 26
55.9 – 66
2 years old
85 – 110
38.6 – 49.9
23 – 27
58.4 – 68.6
3 years old
90 – 115
40.8 – 52.2
23 – 27.5
58.4 – 69.9
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 Bullmastiff Puppy’s Growth and Development
1. How big will my Bullmastiff puppy get when fully grown?
Bullmastiffs are a large breed. Typically, adult males can weigh up to 130 lbs (59 kg) or more, while females can weigh up to 120 lbs (54 kg). Height at the shoulder ranges between 24-27 inches for males and 24-26 inches for females.
2. When will my Bullmastiff puppy stop growing?
Most Bullmastiffs will reach their full height by 18 months. However, they might continue to fill out and gain weight until they’re around 2-3 years old.
3. How much should I feed my growing Bullmastiff puppy?
The amount will vary depending on the age, activity level, and specific brand of food. It’s essential to follow feeding guidelines on the puppy food package and regularly consult with your veterinarian.
4. What growth-related health concerns are common in Bullmastiffs?
Due to their size, Bullmastiffs can be susceptible to hip and elbow dysplasia. Regular vet check-ups and X-rays can help detect these conditions early.
5. Should I be concerned if my Bullmastiff’s growth rate seems fast?
Rapid growth can lead to joint problems. Ensure your pup’s diet is well-balanced and not overly high in calories. If concerned, always consult your veterinarian.
6. Are Bullmastiffs late bloomers in terms of growth?
While they might achieve most of their height by 18 months, they continue to mature and fill out until they’re about 2-3 years old.
7. How can I ensure my Bullmastiff has strong bones and joints during growth?
Feed them a balanced diet, avoid excessive jumping or hard play on hard surfaces, and provide joint supplements if recommended by your vet.
8. When should I switch from puppy food to adult dog food?
For Bullmastiffs, transitioning usually happens around 12 to 18 months. Consult with your vet to decide the best time and food type.
9. How can I tell if my Bullmastiff puppy is overweight?
If you can’t easily feel the ribs without pressing hard or see a waist when viewing your dog from above, your dog might be overweight. Always check with a veterinarian for an accurate assessment.
10. Are Bullmastiffs prone to obesity?
Yes, like many larger breeds, they can be prone to obesity, especially if overfed or not exercised regularly.
11. What’s the average lifespan of a Bullmastiff?
Bullmastiffs generally have a lifespan of 8-10 years. Proper care, diet, and regular vet check-ups can contribute to a long, healthy life.
12. How often should my Bullmastiff puppy be exercised?
While they need regular exercise, avoid intense activities while they’re still growing to protect their joints. Short, daily walks and play sessions are ideal.
13. When will my Bullmastiff puppy lose his baby teeth?
Like most breeds, Bullmastiffs will typically start losing their baby teeth around 3-4 months of age.
14. At what age is a Bullmastiff considered an adult?
While they may reach physical maturity around 2-3 years of age, they might not reach mental maturity until around 3-4 years.
15. How often should I take my Bullmastiff puppy to the vet for growth check-ups?
In the first year, monthly vet visits are common. After the first year, regular annual check-ups are typical unless concerns arise.
16. How can I prevent my Bullmastiff puppy from developing behavioral problems as he grows?
Early socialization, obedience training, and consistent boundaries are crucial for raising a well-behaved Bullmastiff.
17. My Bullmastiff puppy seems taller/shorter than the average. Should I be worried?
All dogs grow differently. As long as your vet confirms your puppy is healthy, slight deviations from the average shouldn’t be a concern.
18. Can neutering or spaying affect my Bullmastiff’s growth?
There’s some evidence suggesting early neutering or spaying can affect a dog’s growth plates, potentially causing them to grow taller. It’s best to discuss the optimal timing with your veterinarian.
19. What toys are suitable for my growing Bullmastiff puppy?
Durable chew toys that can’t be easily torn apart are ideal. This helps with teething and prevents the ingestion of small parts.
20. Is crate training recommended during my Bullmastiff’s growth period?
Yes, crate training can provide a safe environment for your Bullmastiff and also aids in housebreaking and behavior training. Ensure the crate is size-appropriate as your puppy grows.
Bullmastiff Resources
CBD for Bullmastiffs: What You Need to Know
Best Supplements for a Senior Bullmastiff
Best Flea & Tick Products for Bullmastiffs
Best Dog Foods for Bullmastiffs
Best Online Dog Training Courses for Bullmastiff
Best Hip & Joint Supplement for a Bullmastiff
What Supplements Should I Give a Bullmastiff Puppy?
The 9 Best Bullmastiff Puppy Foods
Best Dog Beds for German Shepherds
Giving This to Your Bullmastiff Daily Can Alleviate Itchy Allergies
6 Natural Ingredients to Fight Your Bullmastiff’s Allergies
8 Ways to Stop Your Bullmastiff’s Scratching
7 Ways to Calm Your Bullmastiff’s Anxiety
6 Remedies for Your Bullmastiff’s Diarrhea, Gas, or Vomiting
7 Best Dental Chews for a Bullmastiff
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