Beagle Weight by Age: 13-Inch vs 15-Inch Size

Beagles are merry, compact scent hounds. Owners often want a single “correct” weight for every age. The AKC Official Standard of the Beagle defines size primarily by height, with two varieties. This guide sticks to that language, then explains how to track growth with your veterinarian—without invented month-by-month charts.

What the AKC standard says about size

The standard describes a miniature Foxhound: solid and big for his inches, with the wear-and-tear look of a hound that can last in the chase. On varieties it is specific:

• Thirteen Inch: hounds not exceeding 13 inches in height.
• Fifteen Inch: hounds over 13 but not exceeding 15 inches in height.
• Disqualification: any hound measuring more than 15 inches.

That language is about conformation classes—not a promise that every healthy adult will land on one scale number, and not a growth calendar for puppies. The AKC Beagle breed page introduces the breed’s hunting and companion roles.

Weight vs height (read carefully)

Some online charts invent neat pound bands for “13-inch” and “15-inch” Beagles. The official standard text you can open above is height-based. The AKC also publishes a general Breed Weight Chart that lists Beagle entries among many breeds; treat any single cell as a rough reference at most, and let your veterinarian interpret your dog’s weight with body condition—not a screenshot.

Puppy growth: track trends, not internet charts

There is no official AKC month-by-month Beagle weight table in the breed standard. Puppies grow at different rates. Research such as Salt et al. (2017) in PLOS ONE discusses growth-standard charts for monitoring bodyweight in dogs as a general research topic—not a DIY diagnosis tool for one breed.

Practical approach with your vet:

1. Weigh on the same scale when you can, and write the date and number down.
2. Bring the log to wellness visits.
3. Ask your vet to score body condition (see the WSAVA Dog Body Condition Score chart), not only the scale number.
4. Follow your vet’s feeding plan. VCA’s feeding-growing-puppies overview is general education; your puppy’s plan is individual.

Why lean matters for Beagles

VCA’s Beagle overview states that Beagles are prone to obesity, which can worsen joint and spinal conditions, and that strong appetite and food motivation require careful portion control. VCA’s obesity overview explains overweight vs obese thresholds and why simply shrinking a random cup of food without veterinary guidance can create nutrient problems.

See our food-motivation guide for more on that topic.

What this guide does not do

• Predict adult weight from a single puppy weigh-in.
• Invent official pound bands the breed standard does not state.
• Replace a veterinary exam, nutrition plan or diagnosis.

If your Beagle’s weight, appetite or energy changes suddenly, call your veterinarian.