View all Large breed growth charts
Rottweiler Growth Chart
Rottweilers are powerful guardian breeds with heavy bone and rapid early growth. They often continue filling out until 18 months or later. Avoid overfeeding during growth; muscle and frame develop on a longer timeline than small breeds.
View weight chart (lb & kg)Calculate Your Rottweiler Puppy's Adult Weight
Enter your Rottweiler puppy's age and current weight for an estimated adult weight range.
Estimated ranges by age
Rottweiler key puppy weight milestones
Compare estimated typical ranges across male and female puppies in lb and kg. Month labels are approximate; refer to the weeks shown. Use these milestones as a growth trend, not a fixed target.
- 2 months (8 weeks)9.9–34.3 lb4.5–15.6 kg
- 3 months (12 weeks)15–42.9 lb6.8–19.5 kg
- 6 months (24 weeks)27.9–64.7 lb12.7–29.3 kg
- 1 year (52 weeks)52.5–106.1 lb23.8–48.1 kg
Rottweiler weight by age
Typical male and female puppy weight ranges by age, available in lb and kg. Individual puppies may vary.
Most Rottweiler puppies approach adult weight around 18 months, although individuals may finish earlier or later.
These estimated ranges combine the breed's adult weights with a size-based growth curve. They are not measured breed-specific percentiles or health targets. Month labels are rounded approximations; use the week values for each row. How these weight ranges are calculated
Rottweiler Growth Stages
Understanding the typical growth stages helps you know what to expect as your Rottweiler puppy grows.
Neonatal
0–2 weeksPuppies are born with eyes and ears closed, relying entirely on their mother. Rapid weight gain occurs during this period.
Socialization
3–12 weeksEyes and ears open. Puppies begin to explore, play, and learn social behaviors. This is a critical period for development.
Juvenile
3–8 monthsRapid growth continues. Puppies become more independent, start teething, and develop coordination.
Adolescent
8–14 monthsGrowth rate begins to slow. Puppies reach sexual maturity and may test boundaries. Muscle mass develops.
Young Adult
14–18 monthsGrowth is nearly complete. Your puppy is filling out and approaching adult proportions.
Adult
18+ monthsYour puppy has reached their full adult size. Weight should remain relatively stable with proper nutrition.
Rottweiler FAQ
How much will my Rottweiler puppy weigh as an adult?
Adult Rottweilers are classified as large dogs, with typical finished weights of 80 to 135 lb. Males may weigh 95–135 lb and females 80–100 lb. These are estimated ranges—individual genetics and parent size may shift results above or below breed norms.
At what age is a Rottweiler fully grown?
As a large breed, most Rottweilers finish growing between 14 and 18 months. Rottweilers develop heavy bone slowly; muscle may keep building into the second year. Growth charts work best when you track several weekly weights rather than relying on one measurement taken during a growth spurt or quiet phase.
How accurate is a Rottweiler puppy weight chart?
Estimated Rottweiler growth curves assume typical development, but European versus American breeding styles create meaningful variation within the breed. Heavy bone develops slower than height. Parent weight and body condition may refine predictions when available. Charts work best alongside sex-specific ranges and consistent measurement habits.
How much should a Rottweiler puppy weigh at 12 weeks?
Check the 12-week row in the weight-by-age table above for the estimated male and female ranges. If your puppy falls well outside that band, re-check the scale, the lb/kg setting, and the age entry first — a single off reading is more common than a truly unusual puppy.
Do male and female Rottweilers grow differently?
Significantly. Males often reach 95–135 lb with massive bone, while females typically finish at 80–100 lb. Males also mature more slowly.
Is my Rottweiler puppy underweight or overweight?
Rottweiler puppies should grow steadily, never rushed. You should feel ribs under a light covering. Rapid weight gain in this heavy breed stresses joints — if the curve spikes, ask your vet.
How much should I feed my Rottweiler puppy?
Feed a large-breed puppy formula in measured meals and aim for slow, steady growth — this matters more than hitting a big number early. Avoid supplementing with extra calcium unless your vet advises it.