Beagles are a beloved small dog breed with a life expectancy of 12 to 15 years. These dogs are affectionate, intelligent, and full of energy, making them wonderful companions for families. Their playful and curious nature is matched by their muscular build and independent spirit.
But how large will your Beagle grow? This article provides a comprehensive guide to understanding your Beagle’s growth and weight, including milestones, potential issues, and ways to ensure healthy development for your furry friend.
Overview: Fun Facts About the Beagle
Beagles, part of the Hound group, were originally bred in England for hunting hares and rabbits. Their keen sense of smell and distinctive long, floppy ears make them exceptional scent trackers. Here are some quick facts:
- Popularity: Beagles are the third most popular dog breed.
- Temperament: Friendly, curious, and high-energy, Beagles make excellent family pets.
- Vocal Nature: Known for their melodious howls and barks, Beagles can be vocal—a trait to consider if you live in close proximity to neighbors.
Their strong prey drive stems from their hunting ancestry, so they might need supervision around smaller pets. Proper training and socialization ensure they’re a joy to have in any home.
Beagle Sizes: Pocket, 13-Inch, and 15-Inch

Beagles come in three main size categories:
- Pocket Beagles: These are the smallest, weighing 7–15 pounds (3.2–6.8 kg) and standing 7–12 inches (17.7–30.4 cm).
- 13-Inch Beagles: Small-sized Beagles that stand 11–13 inches (28–40.6 cm) tall and weigh 15–20 pounds (6.8–9 kg).
- 15-Inch Beagles: Larger Beagles, weighing 20–30 pounds (9–13.6 kg).
Understanding these size variations can help predict your Beagle’s growth and ensure proper care for their specific needs.
Beagle Growth & Weight Chart
Monitoring your Beagle’s growth is essential to ensure they develop healthily. Here’s a detailed growth chart for both 13-inch and 15-inch Beagles:
13-Inch Beagle Growth Chart

Age | Weight (lbs) | Weight (kg) |
1 month | 2–3 | 0.9–1.3 |
2 months | 3–5 | 1.3–2.2 |
3 months | 7–10 | 3.1–4.5 |
4 months | 8–11 | 3.6–4.9 |
5 months | 9–12 | 4.0–5.4 |
6 months | 12–17 | 5.4–7.7 |
8 months | 16–20 | 7.2–9.0 |
12 months | 16–20 | 7.2–9.0 |
15-Inch Beagle Growth Chart

Age | Weight (lbs) | Weight (kg) |
1 month | 3–4 | 1.3–1.8 |
2 months | 4–7 | 1.8–3.1 |
3 months | 8–11 | 3.6–4.9 |
4 months | 9–12 | 4.0–5.4 |
5 months | 10–13 | 4.5–5.8 |
6 months | 14–18 | 6.3–8.1 |
8 months | 18–22 | 8.1–9.9 |
12 months | 20–30 | 9.0–13.6 |
Beagle Puppy Growth Stages (with Pictures)
Newborn to 4 Weeks

Newborn Beagle puppies are tiny, weighing 1.5–2 pounds (0.7–0.9 kg). Their eyes and ears are closed, relying on their mother for warmth and nutrition. By the end of the first week, their weight doubles, and by the third week, they start socializing and exploring their environment.
4 Weeks (1 Month)

At one month, Beagle puppies begin walking, running clumsily, and showing their personalities. They weigh 2–3 pounds (0.9–1.4 kg) and start weaning with soft food alongside their mother’s milk.
8 Weeks (2 Months)

By two months, puppies weigh 4–8 pounds (1.8–3.6 kg). They’re curious, playful, and ready to transition to a new home. Weaning is almost complete, and basic training begins.
12 Weeks (3 Months)

At three months, Beagles weigh 7–11 pounds (3.2–5 kg). They start responding to their name, follow house-training rules, and engage in general training. This is an excellent time for socialization and positive reinforcement.
To further make your Beagle feel like part of the family, choose a memorable Beagle Name that suits their personality.
16 Weeks (4 Months)

At four months, Beagles become energetic and playful. They weigh 8–12 pounds (3.6–5.4 kg) and are ready for short walks and basic commands. Consistent training is essential to manage their energy.
Factors Influencing Beagle Growth
Genetics and Breed Size
A Beagle’s final size is heavily influenced by genetics. Smaller Pocket Beagles will naturally be smaller than their 15-inch counterparts.
Nutrition and Diet
Providing high-quality puppy food is crucial for healthy growth. Overfeeding can lead to obesity, while underfeeding can result in stunted growth. Gradually transition to adult dog food by six months.
Exercise and Activity
Beagles are energetic dogs that require regular exercise to maintain healthy development. Lack of activity can lead to weight gain and health issues.
Health Conditions
Conditions like hypothyroidism, intestinal parasites, and early spaying/neutering can impact growth. Consult a vet to address these concerns and ensure timely vaccinations and deworming.

Helping Your Beagle Maintain a Healthy Weight
For Overweight Beagles
- Reduce portion sizes and use low-calorie treats like carrots or green beans.
- Increase daily exercise.
- Consult a vet to rule out underlying health issues.
For Underweight Beagles
- Offer frequent, nutrient-rich meals.
- Incorporate high-protein and healthy fat sources like real meat and sweet potatoes.
- Ensure stress-free feeding environments.
When Do Beagles Stop Growing?
Beagles typically stop growing by 18 months. At this stage, their growth plates close, and they reach their full size:
- Males: 22–24 pounds (10–11 kg)
- Females: 20–22 pounds (9–10 kg)
Conclusion: How Big Will My Beagle Get?
The size of your Beagle depends on their type (Pocket, 13-inch, or 15-inch). With proper care, these loyal, playful dogs grow into healthy adults, ready to bring joy to your family. Feed them quality food, ensure regular vet checkups, and provide ample exercise to keep them thriving.
Do you have a Beagle at home? Share your pup’s growth journey with us in the comments below!
Other considerations, such as Beagle Price and diverse Beagle Colors, can also influence your decision when selecting a Beagle. Additionally, explore Beagle Mixes for unique characteristics that may suit your lifestyle.