Most big dogs weigh between 50 and 100 pounds, though the range stretches well beyond that depending on breed. A Labrador Retriever and a Great Dane are both “big dogs,” but one tops out around 80 pounds while the other can exceed 200. The answer depends entirely on whether you’re talking about large breeds, giant breeds, or something in between.
Large Breed Weight Ranges
Dogs are generally considered “large” once they exceed about 50 pounds as adults. The most popular large breeds in the U.S. fall into a fairly predictable range. Labrador Retrievers typically weigh 55 to 80 pounds, with males at the higher end. Golden Retrievers land in a similar window of 55 to 75 pounds. German Shepherds run a bit heavier, usually 50 to 90 pounds depending on sex and build.
Other well-known large breeds and their typical adult weights:
- Boxer: 50 to 80 pounds
- Siberian Husky: 35 to 60 pounds
- Doberman Pinscher: 60 to 100 pounds
- Alaskan Malamute: 75 to 85 pounds
- Rottweiler: 80 to 135 pounds
Females consistently weigh less than males in nearly every large breed, sometimes by 10 to 20 pounds. If you’re trying to estimate where your dog should land, sex matters almost as much as breed.
Giant Breeds: Over 100 Pounds
Once you cross into giant breed territory, weights jump dramatically. These dogs routinely exceed 100 pounds, and several breeds push well past 150. The American Kennel Club lists the following ranges for some of the biggest:
- Great Dane: 110 to 175 pounds
- English Mastiff: 120 to 230 pounds
- Saint Bernard: 120 to 180 pounds
- Anatolian Shepherd: 80 to 150 pounds
- Akita: 70 to 130 pounds
English Mastiffs hold the record for the heaviest dog breed overall, with some individuals topping 230 pounds. That’s heavier than most adult humans. Even on the lighter end, giant breeds start where many large breeds max out.
When Big Dogs Reach Full Size
Large and giant breeds take significantly longer to finish growing than small dogs. A toy breed hits adult weight by about 12 months. A large breed in the 65 to 90 pound range won’t reach full size until around 18 months. Giant breeds that top 90 pounds can take nearly two years to fill out completely, according to the WALTHAM Petcare Science Institute.
This matters if you’re raising a puppy and wondering whether your dog is “big enough” yet. A 10-month-old Great Dane that weighs 90 pounds still has months of growth ahead. Different giant breeds also follow different growth curves, so there’s no single chart that works for all of them. Your best reference point is the breed standard weight range combined with your vet’s growth tracking.
How to Tell If Your Big Dog’s Weight Is Healthy
The number on the scale only tells part of the story. Two Labrador Retrievers can both weigh 75 pounds, with one being lean and athletic and the other carrying too much fat. Veterinarians use a body condition scoring system on a 1 to 9 scale to assess whether a dog is underweight, ideal, or overweight. A score of 4 or 5 out of 9 is the target.
You can do a quick version of this at home. Run your hands along your dog’s ribcage. At an ideal weight, you should feel the ribs easily with only a thin layer of fat over them. Looking down from above, you should see a visible waist behind the ribs. From the side, the belly should tuck upward rather than hanging level with the chest. If the ribs are hard to find under a thick layer of padding, or the waist has disappeared, your dog is likely overweight regardless of what the scale says.
Why Extra Weight Hits Big Dogs Harder
Carrying excess pounds is a problem for any dog, but large and giant breeds pay a steeper price. Their joints already bear enormous loads just at a healthy weight. Research from UC Davis found that mixed-breed dogs weighing more than 44 pounds as adults face a significantly higher risk of joint disorders, especially if spayed or neutered before one year of age. For female dogs over 43 pounds, the risk of joint problems jumped from 4 percent in intact dogs to 10 to 12 percent in those spayed early.
Even a few extra pounds on a big dog accelerates wear on hips, knees, and elbows. Joint disorders can limit mobility, reduce quality of life, and shorten a dog’s active years. Large breeds already have shorter lifespans than small dogs, so keeping them lean is one of the most impactful things you can do.
How to Weigh a Big Dog at Home
Weighing a Chihuahua on a bathroom scale is simple. Weighing a 120-pound Mastiff is a different challenge entirely. The most common home method is the lift-and-subtract technique: step on a bathroom scale alone, record your weight, then pick up your dog and step on again. The difference is your dog’s weight. This works reasonably well for dogs up to about 50 or 60 pounds, but lifting anything heavier gets impractical and risks injury to you or the dog.
For truly large dogs, a pet-specific platform scale is the better option. These have wide, low platforms your dog can stand on, and many include a dynamic weighing mode that filters out the reading errors caused by a fidgeting dog. They typically cost $100 or more, but if you’re managing a big dog’s weight for health reasons, the accuracy is worth it. Many pet supply stores and veterinary offices also have walk-on scales you can use for free if you ask.