How Much Should My Beagle Weigh? With a breed like the Beagle that has such a large range of standard weight, its not always easy to tell by the scale. For Beagles that are 13 inches or less AKC standard weight is under 20 pounds, and for Beagles with a height of 13 to 15 inches, AKC standard weight is 20 to 30 pounds.