Beagle Puppy Weight Calculator

Calculate the adult weight for your Beagle. Just type your puppy’s current weight and age and see how big your puppy gets.

Beagle Breed Profile

Breed Overview

The Beagle is a small-to-medium hound originally bred in England for tracking hare and other small game. Known for their strong sense of smell, intelligence, and a curious, merry temperament, Beagles are among the most popular companion dogs in the U.S. They’re loyal, good with children, and tend to be vocal—traits that reflect their history as pack animals and scent hounds.

Beagles are classified as small to medium-sized dogs, typically weighing between 20 to 30 pounds. Growth tracking is important because they can easily become overweight due to their love of food and relatively small frames. Healthy growth ensures proper joint development and reduces the risk of obesity-related issues later in life.

You can read more about the breed in the American Kennel Club Beagle profile.

Beagle Growth Chart & Weight Ranges

There are two Beagle size varieties: 13-inch and 15-inch, based on height at the shoulder. This table provides average weight ranges for Beagle puppies. Males often weigh 2–5 lbs more than females by adulthood.

Age	Avg Male Weight	Avg Female Weight
4 weeks	3 – 4 lbs	2.5 – 3.5 lbs
8 weeks	5 – 7 lbs	4 – 6 lbs
3 months	8 – 11 lbs	7 – 10 lbs
4 months	10 – 13 lbs	9 – 12 lbs
6 months	14 – 18 lbs	13 – 17 lbs
9 months	18 – 22 lbs	16 – 20 lbs
12 months	20 – 27 lbs	18 – 25 lbs

Adult Beagles typically weigh:

• 20–25 lbs for 13-inch Beagles
• 25–30 lbs for 15-inch Beagles

How Much Bigger Will My Beagle Puppy Get?

Beagle puppies grow rapidly in their first 6 months and usually reach 75–80% of their adult weight by 6 months. Most reach full adult size by 12 to 14 months.

Rule of Thumb:

To estimate an adult Beagle’s weight, double its weight at 16 weeks.

For example, if your puppy weighs 10 pounds at 16 weeks, expect an adult weight of around 20 pounds.

Beagles are not a giant breed, so they don’t experience prolonged growth beyond the first year. However, they may still gain muscle and fill out until 14–16 months.

Beagle Growth Tips

Nutrition

• Feed a high-quality puppy formula for small or medium-sized breeds until they are 12 months old.
• Puppies under 6 months should be fed three times a day, then reduced to two meals daily after 6 months.
• Beagles love food—so avoid overfeeding and stick to portion recommendations.

Exercise

• Beagle puppies require moderate daily activity, such as short walks, fetch, and mental stimulation (scent-based games are particularly effective).
• Avoid long or intense runs until their joints are mature (around 1 year).

Health Watch

Some common growth-related concerns for Beagles include:

• Obesity – a major concern that can develop quickly with poor diet control.
• Hip dysplasia – while less common than in large breeds, it can still occur.
• Intervertebral disc disease (IVDD) – linked to excessive weight or poor movement habits.
• Ear infections – due to floppy ears, though not related to growth, it’s worth monitoring.

Keeping a regular growth chart and checking in with your vet every few months can help ensure your Beagle puppy is developing at a healthy pace.