Calculate the adult weight for your Tibetan Mastiff. Just type your puppy’s current weight and age, and see how big your puppy gets.
Weight Predictions
Predicted Adult Weight
Based on current weight and age progression
AKC Breed Standard
Official AKC weight range for this breed
Breed Average
Average weight for this breed and gender
Growth Timeline
Important Notes
- These predictions are estimates based on breed standards and growth patterns
- Individual dogs may vary significantly from these predictions
- Factors like nutrition, health, and genetics affect final adult weight
- Consult your veterinarian for personalized growth assessments
Tibetan Mastiff Breed Overview
The Tibetan Mastiff is an ancient guardian breed originating from the Himalayan regions of Tibet, Nepal, and India. Bred to protect livestock from predators such as wolves and snow leopards, this powerful and noble dog is renowned for its independence, loyalty, and protective instincts. Despite their imposing presence, Tibetan Mastiffs can be affectionate with family, though they remain wary of strangers.
This is a giant breed, with adult males often weighing 90–150 lbs and females 70–120 lbs. Growth tracking is especially important because Tibetan Mastiffs develop slowly, taking up to 18–24 months to reach full maturity. Monitoring weight helps prevent joint stress, obesity, and skeletal development issues—common risks in large and giant breeds (American Kennel Club).
Tibetan Mastiff Growth Chart & Weight Ranges
| Age | Avg. Weight (Male) | Avg. Weight (Female) |
|---|---|---|
| 4 weeks | 8–12 lbs (3.6–5.4 kg) | 7–10 lbs (3.2–4.5 kg) |
| 8 weeks | 18–25 lbs (8.2–11.3 kg) | 15–22 lbs (6.8–10 kg) |
| 3 months | 35–45 lbs (15.9–20.4 kg) | 30–40 lbs (13.6–18.1 kg) |
| 6 months | 60–85 lbs (27.2–38.6 kg) | 50–75 lbs (22.7–34 kg) |
| 9 months | 80–110 lbs (36.3–49.9 kg) | 65–95 lbs (29.5–43.1 kg) |
| 12 months | 90–130 lbs (40.8–59 kg) | 75–105 lbs (34–47.6 kg) |
| 18–24 months | 100–150 lbs (45.4–68 kg) | 80–120 lbs (36.3–54.4 kg) |
Note: Males are typically 10–20 lbs heavier than females at full maturity.
How Much Bigger Will My Tibetan Mastiff Puppy Get?
Most Tibetan Mastiffs reach 50% of their adult weight by around 6–8 months, but they continue growing in height and muscle well into their second year.
A rule of thumb: Double their weight at 16 weeks for a rough adult size estimate—but remember that giant breeds grow slower and may not show their full adult build until 18–24 months.
Tibetan Mastiff Growth Tips
Nutrition
- Feed a giant breed puppy formula with controlled calcium and phosphorus levels to support joint health.
- Offer 3–4 small meals per day until 6 months, then reduce to 2 meals daily.
- Avoid overfeeding—rapid growth increases the risk of joint disorders like hip and elbow dysplasia.
Exercise
- Gentle walks and light play are best during puppyhood.
- Avoid high-impact activities, such as jumping or running on hard surfaces, until growth plates close (around 18 months).
- Gradually introduce endurance activities as they mature.
Health Watch
- Common growth-related issues include hip dysplasia, elbow dysplasia, and hypothyroidism.
- Maintain regular vet check-ups and joint health monitoring.
- Keep them lean to reduce strain on their developing frame (Tibetan Mastiff Association of America).
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