Rottweiler puppy growth chart
Rottweilers are a large breed, with most adults settling somewhere between roughly 35 and 60kg depending on sex and build, and large breeds take considerably longer to finish growing than small ones — often not reaching full physical maturity until somewhere between 18 and 24 months. A growth chart for a breed this size is about tracking a steady trend over many months, not hitting a precise weekly figure.
Why large breeds grow on a longer timeline
A rottweiler puppy gains weight quickly in the first several months, but the growth plates in a large breed's bones stay open for much longer than in a small dog, which is exactly why controlled, steady growth matters more here than simply growing as fast as possible. Growing too quickly, rather than too slowly, is the pattern that tends to cause concern in large-breed puppies.
That is also why large-breed puppy foods are formulated differently to standard puppy recipes — with calcium and calorie levels calculated to support steady rather than rapid growth. Feeding a large-breed puppy an unsuitable food, or simply too much of a suitable one, is one of the more common preventable mistakes owners make.
Reading a rottweiler's growth curve sensibly
A single weigh-in that looks a little high or low against an average curve is rarely meaningful on its own. What matters is whether the dog is tracking a broadly steady upward trend over several weeks, weighed at roughly the same time of day where possible so comparisons are fair.
A sudden, sharp jump in weight over a short period is worth more attention than a dog tracking slightly below an average line, since rapid weight gain is the pattern more strongly linked to joint problems in large breeds. If growth looks unusually fast, or you are ever unsure whether your rottweiler's development is on track, a vet can assess it properly rather than relying on a general chart alone.
Common questions
- How big will my rottweiler puppy get?
- Most adult rottweilers land somewhere between about 35 and 60kg, with males generally larger than females. Individual size varies with genetics, so the puppy's parents are often a better guide than a breed average.
- When do rottweilers stop growing?
- Rottweilers typically reach close to their adult height by around 12 to 18 months but can keep filling out in muscle and frame until somewhere between 18 and 24 months, considerably later than a small breed would finish growing.
- Should I feed my rottweiler puppy a large-breed food?
- Yes, a food formulated for large-breed puppies is generally recommended, since it is calculated to support steady rather than overly rapid growth, which matters more for a big dog's developing joints than it does for a small breed.
- Is rapid weight gain bad for a rottweiler puppy?
- Growing too quickly is generally considered more of a concern for large breeds than growing a little slowly, since it has been linked to a higher risk of developmental joint problems. If your puppy's weight is climbing sharply, it is worth discussing with a vet.
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Written against guidance published by UK veterinary and welfare organisations. Always confirm specifics with your own vet.
Written by Matt Garnett, who runs Giddy Pets and is a lifelong pet owner — not a vet. This is general information, not veterinary advice, and it cannot replace an examination by the vet who knows your animal. How we write these guides.