Rottweilers are large, muscular dogs who grow to be fierce, loving protectors. As shown in the charts below, their weight can vary significantly based on gender. Keep in mind that the following numbers are estimates to give you an idea of their size at particular ages. Don’t worry if your Rottweiler is a little behind or ahead of the following numbers. Keep taking your Rottweiler to their veterinarian to make sure they are growing healthy and strong!

The Rottweiler breed is considered to be a medium to large-sized dog. This means that you’ll more commonly experience rapid growth in the first few months. Rottweiler’s weight also changes rapidly between the first month of life and the ninth month. As you can see from our Rottweiler weight chart, the weight gain slows down by the end of the first year.

Rottweilers are well-known for how big they grow, and you may be wondering how big your dog will get in the long run. Male Rottweilers are usually taller and weigh more than female ones when fully grown.  If you have a male dog, you can expect the animal to weigh anything between 100 lbs to 130 lbs when fully grown. Also, your dog should be about 25 to 29 inches tall at the shoulder.  Female Rottweilers that are full grown usually weigh about 85 lbs to 105 lbs and are about 23-26 inches tall at the shoulders. Since these figures are only estimates, your dog might be slightly smaller or bigger than the figures given above. 

When Do Rottweilers Stop Growing?

Rottweiler attains 75 percent of its adult height once it is 6 months old. This is because it reaches his or her adult height between 12 months and 2 years—before putting on weight and muscles. Rottweiler puppies can also reach around 66 percent of their adult weight at six months. It can continue to add on weight up to 2 years old or even longer.

When it comes to height, male Rottweiler reaches a height of between 24 to 27 inches, while females grow between 22 to 25 inches. The length is slightly longer than their height. Weight is around 110 pounds for males and 92 pounds for females.

Are Male Rottweilers Always Bigger Than Female Ones? 

If you compare a male and a female pup from the same litter, the male is likely to be towards the higher end of those figures, and the female towards the lower end. But comparing pups from different litters/parents, could produce totally different results.

If you want to keep your Rottweiler pup healthy, it’s important to be patient and allow him to grow and develop at his own pace! Remember – Rotties grow and mature slowly, and the eventual height/weight of your pup is determined mostly by genetics. But, making sure that he eats a premium puppy food, in the right quantities, will help him reach his maximum potential, and keep him in tip-top shape.

How To Calculate Your Rottweiler’s Adult Weight

If you are just tired of guessing around then you will probably be happy to hear that there is actually a way to calculate your dog’s adult body weight. You won’t need any information for that other than your dog’s weight at a certain time so if you don’t know your puppy’s parents, the calculation will still work.

Calculating the estimated size of a medium to large breed dog involves taking the weight at 14 weeks old, and then multiplying by 2.5 to get the final number. As an example, if your 14 week old puppy weighs 25 pounds, then take 25 times 2.5 to get 62.5 pounds as an estimate for your puppy’s adult weight. 

What happens if you don’t know how much your puppy weighed at 14 weeks old?

If that’s the case, you can also estimate their adult weight when they are 6 months old. A second way to calculate their adult weight is by doubling your Rottweiler’s weight at 4 months old and adding about 10 pounds

How Long Does It Take For A Rottweiler To Be Fully Grown?

It usually takes the Rottweiler one year to be fully grown in height. However, they may still put on weight and broaden their chest until they are 2-3 years old.

In short, Rottweilers stop growing when they are about 3 years old. Some Rottweilers never fill out their bone structure and they may be finished once their growth plates close. Be patient and don’t try to speed up the growth in any way.

An average large dog will be fully grown around 14 months, although they can have a second growth spurt between 8-14 months that speeds up their growth later in life than smaller dogs

How To Help Your Rottweiler Lose Weight If He Is Overweight 

It is not uncommon for older Rottweilers who are less active to gain weight, especially if they have the same diet that they did when they were in their prime. If your dog is overweight, then some serious dietary changes would need to be made so that they can regain their health. Too much fat on the body causes unnecessary health problems, which would be costly for you and dangerous for your Rottweiler.

To help your overweight Rottweiler lose weight, one of the very first things that you can do is adjust his diet by cutting back on calories. His diet should have been heavily weighted in the area of protein in the first place. Many of the dog foods available have too many carbs. You can try a raw diet for its high protein, or you can switch to a kibble that is high in protein.  Fiber is also good for his gut health, so you should consider fruits and vegetables that would facilitate this, and there is dog food on the market that has real fruits and vegetables included. Additionally, you need to carve out time for exercise with your Rottweiler but ensure that you do not cause injury to his joints if he is massively overweight. Start slow until he can exercise more vigorously.

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