Summary: Rottweilers grow through five stages: neonatal (0-2 weeks), transitional (2-4 weeks), socialization (4-12 weeks), juvenile (3-6 months), and adulthood (18-24 months). They reach 50-60% of their adult size by 6 months and typically weigh 80-135 lbs, standing 22-27 inches when fully grown. |
Rottweilers are a large, powerful breed known for their loyalty, intelligence, and protective nature. Understanding rottweiler growth stages is essential for proper training, nutrition, and health management. From a tiny, helpless newborn to a fully grown adult, a Rottweiler goes through several developmental phases, each with unique needs and challenges.
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ToggleRottweiler Growth Stages Chart: Weight and Height Milestones
The growth rate of a Rottweiler varies based on genetics, diet, and exercise. The following chart provides an estimated guideline for weight and height milestones:

Age | Weight (Males) | Weight (Females) | Height (Males) | Height (Females) |
Birth | 0.5 – 1.3 lbs | 0.5 – 1.1 lbs | – | – |
1 Month | 4 – 8 lbs | 3 – 7 lbs | 4 – 5 inches | 3 – 4 inches |
2 Months | 12 – 20 lbs | 10 – 17 lbs | 9 – 10 inches | 8 – 9 inches |
3 Months | 30 – 40 lbs | 28 – 36 lbs | 13 – 15 inches | 12 – 14 inches |
4 Months | 45 – 55 lbs | 40 – 50 lbs | 17 – 18 inches | 16 – 17 inches |
6 Months | 65 – 75 lbs | 60 – 70 lbs | 22 – 23 inches | 21 – 22 inches |
9 Months | 80 – 95 lbs | 70 – 85 lbs | 24 – 25 inches | 22 – 24 inches |
12 Months | 90 – 110 lbs | 80 – 100 lbs | 24 – 27 inches | 22 – 25 inches |
18 Months | 100 – 130 lbs | 90 – 110 lbs | 24 – 27 inches | 22 – 25 inches |
These are average estimates, and individual growth rates may vary. Some Rottweilers continue filling out until they are 2 to 3 years old. Puppies experience the fastest growth between 8 weeks and 6 months, requiring a nutrient-rich diet. Pet tech products like weight monitors help track healthy development.
Newborn Stage (0 – 2 Weeks)
At birth, Rottweiler puppies are tiny and completely dependent on their mother. Their eyes and ears are closed, and they rely on touch and scent to navigate their surroundings.
Key Developments
- Puppies weigh around 0.5 – 1.3 lbs at birth.
- They double their weight within 10 days due to constant feeding.
- Their primary activities are nursing and sleeping for proper growth.
Care Tips
- Ensure the mother provides enough milk for the litter.
- Keep the temperature warm (around 85°F) to prevent hypothermia.
- Monitor for weak or sickly puppies that need extra care.
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Neonatal Stage (2 – 4 Weeks)
By 2 weeks of age, puppies open their eyes and begin to develop hearing. They start wobbling around, but their movements are uncoordinated.

Key Developments
- Weight increases rapidly, reaching 4 – 8 lbs by week 4.
- Teeth begin to emerge, signaling the start of the weaning process.
- Puppies become more vocal, attempting to bark and growl.
Care Tips
- Introduce soft puppy food mixed with warm water by week 3.
- Begin handling puppies gently for socialization.
- Keep their sleeping area clean to prevent infections.
Transitional Stage (4 – 8 Weeks)
This is a crucial phase where Rottweiler puppies start exploring their environment. They learn social skills from their mother and littermates, developing their personality.

Key Developments
- Weight reaches 10 – 20 lbs by week 8.
- Puppies begin to run, play, and chew on objects.
- They develop bladder control and start basic potty training.
Care Tips
- Wean puppies fully onto solid food by week 6.
- Begin early training (basic commands like “sit” and “come”).
- Ensure they receive their first vaccinations at 6-8 weeks.
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Juvenile Stage (8 Weeks – 4 Months)
Rottweiler puppies grow rapidly in this stage, gaining up to 10 lbs per month. Their energy levels increase, making playtime and training essential.

Key Developments
- Weight reaches 30 – 50 lbs by 4 months.
- Puppies begin teething, which causes excessive chewing.
- They develop strong bonds with their owners.
Care Tips
- Provide chew toys to soothe teething discomfort.
- Socialize with different people, pets, and environments.
- Feed 3-4 high-protein meals per day to support muscle growth.
Adolescent Stage (4 – 12 Months)
During this stage, Rottweilers develop their adult size and muscle mass. Their personalities fully emerge, and they may start testing boundaries.

Key Developments
- By 6 months, males weigh 65 – 75 lbs, females 60 – 70 lbs.
- Height reaches 21 – 23 inches at the shoulders.
- They enter a fear period, reacting more cautiously to new experiences.
Care Tips
- Maintain consistent training to reinforce good behavior.
- Increase exercise levels but avoid excessive jumping (to protect joints).
- Continue feeding large-breed puppy food for proper growth.
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Young Adult Stage (12 – 24 Months)
At this stage, Rottweilers reach their full height but continue gaining muscle mass. Males may weigh up to 130 lbs, while females reach 100 – 110 lbs.
Key Developments
- Growth slows down, but they still fill out.
- They become more independent and protective.
- Sexual maturity occurs; males may become more territorial.
Care Tips
- Transition to adult dog food around 18 months.
- Provide at least 60-90 minutes of exercise per day.
- Continue obedience training to prevent aggression.
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Full Adulthood (2 – 3 Years)
By this age, a Rottweiler is fully mature, with a powerful build and a strong protective instinct.
Key Developments
- Weight stabilizes between 100 – 130 lbs (males) and 90 – 110 lbs (females).
- Bone density and muscle mass peak.
- Protective instincts become stronger, making training crucial.
Care Tips
- Continue regular vet checkups to monitor joint health.
- Feed high-protein diets to maintain muscle strength.
- Provide mental stimulation to prevent boredom.
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Conclusion
Rottweilers grow rapidly in their first year, reaching full size by 18-24 months. Proper nutrition, exercise, and training at each stage are crucial for raising a well-behaved and healthy Rottweiler. Understanding these rottweiler growth stages ensures that your Rottweiler develops into a strong, loyal, and confident companion. By 12-18 months, Rottweilers reach their full height but continue filling out until age 2-3. Electronic dog collars assist in training through different growth stages.Find out what style dog collar is best for hounds to ensure comfort and safety for your furry friend.