- Dog breeds
- Giant breed
- Working group
- Origin: Germany
Rottweilers are powerful, heavy-boned working dogs. The AKC breed standard sets heights of 24–27 in for males and 22–25 in for females, and the American Kennel Club puts typical weights at 95–135 lb and 80–100 lb. On our size scale that makes them a giant breed, and most reach adult weight at around 18–24 months. This page covers a Rottweiler growth chart by age, a size calculator preset for the breed, and sourced information on lifespan, health testing, exercise and feeding.
How big do Rottweilers get?
According to the American Kennel Club, adult male Rottweilers weigh 95–135 lb (43.1–61.2 kg) and stand 24–27 in (61–69 cm) at the shoulder. Females are a little smaller at 80–100 lb (36.3–45.4 kg) and 22–25 in (56–64 cm). That makes the Rottweiler a Giant breed on our size scale.| Rottweiler | Weight | Height |
|---|
Many healthy pets fall outside the show standard, especially from working or pet lines. Use body condition, not the scale alone, to judge a healthy weight.
Rottweiler growth chart: weight by age
| Age | Male | Female |
|---|---|---|
| 8 weeks | 16 lb7.3 kg | 13 lb5.7 kg |
| 3 months | 31 lb13.9 kg | 24 lb10.9 kg |
| 4 months | 42 lb19 kg | 33 lb14.9 kg |
| 6 months | 59 lb26.5 kg | 46 lb20.8 kg |
| 9 months | 78 lb35.3 kg | 61 lb27.6 kg |
| 12 months | 92 lb41.6 kg | 72 lb32.6 kg |
| 18 months | 109 lb49.3 kg | 85 lb38.6 kg |
| Adult (18–24 months) | 115 lb52.2 kg | 90 lb40.8 kg |
When is a Rottweiler full grown?
Giant breeds like the Rottweiler reach their adult weight at about 18–24 months. Most of the growth happens early: by 6 months a typical male is around 59 lb and a female around 46 lb, after which weight gain slows down as the dog fills out.How we calculate this: each figure is the midpoint of the breed’s adult weight range multiplied by the share of adult weight a giant-size puppy typically reaches at that age (WALTHAM growth standards, Salt et al., 2017). It is the same model used by our Dog Size Calculator.
Rottweiler puppy size calculator
Enter your puppy’s current age and weight to estimate how big your Rottweiler will be as an adult. The calculator is preset for the breed.Dog Size Calculator
Predict how big your puppy will get — estimated adult weight from its current age and weight.
Best from ~8 weeks on; very young pups are less predictable.
Weigh on a flat scale, ideally before a meal.
Not sure? Use the size of the parents, or the larger parent for a mixed breed.
Males often finish a little heavier than females.
| Age milestone | Projected weight |
|---|
Dog breed weight chart (lb & kg) by size
| Size | Adult weight | Full-grown | Example breeds |
|---|---|---|---|
| Toy | 2–12 lb / 1–5.5 kg | ~8–10 mo | Chihuahua, Maltese, Toy Poodle, Pomeranian, Yorkie |
| Small | 12–25 lb / 5.5–11 kg | ~10–12 mo | Shih Tzu, French Bulldog, Mini Schnauzer, Mini Aussiedoodle |
| Medium | 25–50 lb / 11–23 kg | ~12–14 mo | Beagle, Border Collie, Cocker Spaniel, Std. Aussiedoodle* |
| Large | 50–100 lb / 23–45 kg | ~15–18 mo | Labrador, Golden Retriever, German Shepherd, Boxer |
| Giant | 100 lb+ / 45 kg+ | ~18–24 mo | Great Dane, Mastiff, St Bernard, Newfoundland |
*Standard Aussiedoodles span medium–large (≈40–70 lb / 18–32 kg); Mini Aussiedoodles are small (≈15–35 lb / 7–16 kg).
How it works: puppies of a given size reach a predictable share of their adult weight at each age. The tool divides your puppy's current weight by that share to estimate the adult figure, shown as a range.
Disclaimer: estimates for planning only — not veterinary advice. Growth varies with genetics, sex, nutrition and neuter status, especially for mixed and giant breeds. Keep records and consult your vet.
Sources: Salt et al., PLOS ONE 2017 (WALTHAM growth standards) · AKC — when puppies finish growing
Rottweiler temperament and personality
The breed standard describes the Rottweiler as calm, confident and courageous, with a self-assured aloofness toward strangers. With their own family, Rotties are loyal, affectionate and often playful. They are natural guardians, so early socialization and consistent, reward-based training are essential to raise a dog that is steady rather than suspicious. They are intelligent and learn quickly, but their size and strength mean they suit owners who can provide clear leadership, daily exercise and supervision around small children.-
Energy level3/5
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Trainability5/5
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Good with children3/5
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Shedding3/5
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Barking1/5
Ratings are BarnCalc’s own 1–5 scale, based on the breed standard and the sources cited below. Individual dogs vary.
History and origin
The Rottweiler is believed to descend from the drover dogs that accompanied Roman legions across the Alps, herding the cattle that fed the army. Some settled around the town of Rottweil in southern Germany, a busy cattle market, where they became the ‘Rottweiler Metzgerhund’, or butcher’s dog, driving cattle to market and guarding the proceeds. When railways replaced cattle drives the breed declined, then found new work as a police and military dog in the early 1900s. The American Kennel Club recognized it in 1931.Rottweiler lifespan and health
Most Rottweilers live 9–10 years. Want to know how old that is in human terms? Try our dog years calculator, or estimate an individual dog’s outlook with the dog life expectancy calculator.Health conditions documented in the breed
- Hip dysplasia
- Elbow dysplasia
- Osteosarcoma and other cancers
- Heart disease (subaortic stenosis)
- Bloat (gastric dilatation-volvulus)
- Juvenile laryngeal paralysis and polyneuropathy (JLPP)
Health tests to ask a breeder for
The breed’s parent club recommends these screenings for breeding dogs (ask to see the results for both parents):- Hip assessment
- Elbow assessment
- Cardiac exam
- Eye exam by a board-certified ophthalmologist
- JLPP DNA test
This is general information, not veterinary advice. Talk to your vet about your own dog.
Exercise and grooming
| Exercise | 1–2 hours a day |
| Grooming | Weekly brushing |
| Coat | Straight, coarse, dense outer coat with an undercoat |
| Low shedding | No – moderate shedder |
| Apartment living | Not ideal |
How much should a Rottweiler eat?
A healthy, neutered adult Rottweiler weighing 80–135 lb needs roughly 1,660–2,450 kcal a day. With a typical dry food of about 375 kcal per cup, that is about 4.4–6.5 cups a day, split into two meals. Active or intact dogs need more, while older or less active dogs need less. Always check the feeding guide on your food’s label.Breeding and pregnancy
Like all dogs, a pregnant Rottweiler carries her puppies for about 63 days from ovulation. Most females come into heat about every 6 months.Is a Rottweiler right for you?
A great fit for
Experienced owners with space and time for training who want a devoted, protective companion.Think twice if
First-time owners, small apartments, or homes where the dog would be left alone for long periods.Rottweiler FAQ
When is a Rottweiler full grown?
How big will my Rottweiler puppy get?
How much should a 6-month-old Rottweiler weigh?
How long do Rottweilers live?
Are Rottweilers good family dogs?
Why does a Rottweiler grow for so long?
Similar breeds
More dog calculators
- Dog size calculatorHow big will my puppy get?
- Dog years calculatorDog age in human years
- Life expectancyLifespan by breed and size
- Gestation calculatorDue date and whelping window
- Heat cycle calculatorNext heat and fertile days
- Raw dog food calculatorDaily portions by weight
Sources
- AKC official breed standard
- FCI breed standard
- American Kennel Club (AKC)
- AKC: breed club recommended health tests
- American Rottweiler Club: breed health
- Salt C. et al. (2017), growth standard charts for monitoring bodyweight in dogs of different sizes, PLOS ONE
Main photo: Dr. Manfred Herrmann, Allgemeiner Deutscher Rottweiler-Klub (ADRK) e.V., CC BY-SA 3.0, via Wikimedia Commons.
Reviewed by grupo barncalc.com on November 6, 2026. Estimates are for planning only and are not veterinary advice.