From the age of 6 months up to 12 to 18 months, there will still be a slow yet steady change in Beagle weight, although it will not be as drastic as when they were little puppies.
Just as humans go through growth spurts, so do dogs. Therefore, it is not always helpful to compare your dog to others of the same age and try to decide which one is at the correct weight. For example, one Beagle may be 10 pounds at the age of 4 months old and be perfectly healthy and on track… Another may be 8 pounds or 12 pounds at the age of 4 months and still be very healthy and right on track….
When the dog is done growing, the approximate weight for 13” and under Beagles is 22 to 30 pounds (9.97 to 13.60 kg). Approximate weight for 13 to 15” Beagles is 25 to 35 pounds (11.33 to 15.87 kg).
Smaller or Larger than the Standard
There will always be dogs that are either lighter or heavier than the AKC standard range. There are several possible reasons for this. In a litter, if one is lighter, it may be due to having smaller bone structure. Often the word 'runt of the litter' is use and while this word has a stereotype against it, all it really means is that out of all of the pups in a litter, one is smaller than the others…This is most often due to genetics and as long as he or she is healthy, there is nothing wrong with having “the little one”.
Of course, if a pup or dog is not eating well and is not gaining weight nice and steady during that 1st year, the owner should ensure that a full and complete veterinarian checkup be performed to identify any possible medical reasons.
Many Beagles end up being much larger than an owner expected. Again, there are different reasons for this. One possible reason is that this breed can rapidly gain weight if not given the opportunity to exercise each day.
This breed is a hunter…They have an instinct to walk/ run through the woods and fields each day. Owners must feed this “hunger” by making sure that their dog is taken for a long, brisk walk each day. In addition, play time can be done in a safe, fenced in area… and cardio exercise
such as hiking while exploring new areas…or playing catch is a great way for the dog to release pent up energy and have enough exercise to stay healthy.
Beagle weight can also be affected due to the bone structure of the dog. If you purchased your dog from a breeder, hopefully they showed you the parents (dam and sire)…and you can always get a good idea of what size to expect your pup to be when grown… However in some cases, genetics can go back 5 generations or more. This means that even with an estimate from the breeder, an owner may find that they simply have a more sturdier, bigger boned dog than expected, who therefore weighs more than anticipated.