Full Grown Bearded Dragon Size Chart

Have you ever considered sharing your life with a scaly, fascinating creature? If so, a bearded dragon might be the perfect pet for you. These charming reptiles can bring fun and excitement to your home, but before you commit, it’s essential to understand their size when fully grown.

Join me as I shed light on the full-grown bearded dragon size, a key factor in properly caring for your new pet.

Bearded Dragon Size Chart

Understanding the size chart of bearded dragons helps in determining their age and providing appropriate care as they grow. Bearded dragons come in various sizes, but their average size depends on their age and proper care. Here is a quick breakdown of their size chart.

Age (months) Size (inches)
1 3-4
2 5-9
3 8-11
4 9-12
5 11-16
6 11-18
8 13-20
12 15-22
18+ 16-24

Keep in mind that this chart is just a rough guide for bearded dragon sizes during their growth stages. Factors like genetics, diet, and housing conditions can influence a bearded dragon’s size.

Average Length of Full-Grown Bearded Dragons

As bearded dragons mature, their size plateaus, reaching an average length that differs based on their type. Knowing the average length of a full-grown bearded dragon helps ensure you provide adequate space for them to live comfortably. Here’s a look at the average length of some common bearded dragon types:

  • Standard or Classic Bearded Dragon (Pogona vitticeps): The most popular pet variety, their length ranges from 18 to 24 inches, with males generally being larger than females.
  • Rankin’s Bearded Dragon (Pogona henrylawsoni): This smaller species reaches around 12 inches in length, making them a perfect choice for those with limited space.
  • German Giant Bearded Dragon: As the name suggests, these “giants” can reach up to 30 inches in length. They’re rare in the pet trade but sought after by those who want a larger, more impressive bearded dragon.

Remember, a bearded dragon’s health and care will also affect its size. Providing an appropriate and balanced diet, a clean and spacious habitat, and proper temperature regulation will ensure your bearded dragon reaches its full-grown size.

Factors That Affect Bearded Dragon Size

It’s essential to recognize the factors affecting a bearded dragon’s size to ensure optimal care and health. While genetics play a significant role, external factors also contribute to their growth. Consider the following aspects to help your bearded dragon achieve its full potential:

  1. Diet: A balanced diet, rich in calcium and other essential nutrients, is crucial for healthy growth. Feed a mix of insects, vegetables, and fruit that cater to their varying nutritional needs.
  2. Housing: Providing a proper enclosure with a basking spot, hiding places, and adequate space allows for more comfortable growth.
  3. Temperature and Lighting: Bearded dragons need adequate heat and lighting, including a basking area with temperatures between 95-110 degrees Fahrenheit and a UVB light source. These factors promote proper metabolism and overall growth.
  4. Stress: Stress can stunt your bearded dragon’s growth. Ensure a quiet, relaxed environment for your pet and limit unnecessary disturbances.
  5. Health: Parasites, metabolic bone disease, and other health issues can contribute to shorter or malformed growth. Regular veterinary check-ups keep your bearded dragon in good health, promoting proper development.

By considering these factors and providing the best care possible, you’ll create the ideal conditions for your bearded dragon to grow and thrive.

How to Measure Your Bearded Dragon’s Size

Measuring your bearded dragon’s size is important for tracking its growth, ensuring it has ample space, and determining its age (if unknown). Follow these simple steps to measure your bearded dragon accurately:

  • Obtain a flexible measuring tape or ruler: A soft, flexible measuring tape or ruler is ideal, as bearded dragons have curved bodies.
  • Gently restrain your bearded dragon: Hold your bearded dragon lightly in one hand or place it on a flat surface where it feels comfortable and secure.
  • Measure from snout to vent: The snout-to-vent length (SVL) is measured from the tip of the bearded dragon’s snout to the base of its tail (where the cloacal vent is located). This is a standard measurement for reptiles that excludes the tail.
  • Measure from snout to tail end: To get their total length, measure from the tip of their snout to the end of their tail. Gently extend the tail if curved to get an accurate measurement.

Remember to measure your bearded dragon gently and carefully to avoid causing stress or discomfort. Routine measurements can help ensure proper growth and provide insights into your bearded dragon’s overall health.

Size Differences Between Male and Female Bearded Dragons

Understanding the size differences between male and female bearded dragons can be helpful for choosing the right pet or preparing for potential breeding. While they may appear quite similar, there are some subtle differences in size and appearance to bear in mind:

  • Size: In general, male bearded dragons grow slightly larger than females. They tend to have broader heads and larger bodies than their female counterparts. However, these differences can be subtle, so it’s essential to look for other distinguishing features.
  • Shape: Male bearded dragons have wider and more triangular-shaped heads than females. Additionally, males often have thicker and longer tails. These differences become more apparent as they mature.
  • Hemipenal bulges: One of the most reliable ways to determine the sex of a bearded dragon is by examining the area near the vent at the base of the tail. Males typically have two pronounced hemipenal bulges on both sides of the vent, while females have a single, smaller bulge or none at all.

Keep in mind that these size differences may not be noticeable until your bearded dragon reaches sexual maturity, around 8-12 months of age. By familiarizing yourself with these variations, you can better understand the unique characteristics of your bearded dragon and provide appropriate care accordingly.

When Do Bearded Dragons Stop Growing?

Knowing when bearded dragons stop growing helps you understand when they’ve reached their full size, making it easier to provide appropriate care and adjust their diet as needed. Here’s what you should know about the growth rates of these captivating reptiles:

  • Growth Spurts: Bearded dragons experience several growth spurts during their first year of life. They grow rapidly during the initial 6-8 months, shedding their skin multiple times to accommodate their expanding bodies.
  • Slower Growth: After the first 8-12 months, you’ll notice their growth rate slowing down. By this stage, bearded dragons have reached around 80% of their full size.
  • Reaching Full Size: Bearded dragons typically reach their full size by 12-18 months of age. However, some may continue to grow slowly for several months or even years, depending on factors like genetics, diet, and overall health.

Once your bearded dragon has stopped growing, you’ll need to adjust its diet and feeding schedule to maintain a healthy weight. Be sure to monitor its size, and consult with a reptile veterinarian if you notice any unusual changes or issues with growth. Proper care and attention will ensure your bearded dragon remains healthy and content throughout its life.

Being attentive to your bearded dragon’s growth and size is essential for identifying potential health issues. Becoming familiar with some common health concerns related to size can help you maintain a happy, healthy bearded dragon.

  • Metabolic Bone Disease (MBD): This condition results from a calcium deficiency, leading to weak and brittle bones. Signs include stunted growth, deformities, and lethargy. Proper UVB lighting and a calcium-rich diet help prevent MBD.
  • Obesity: Overfeeding can lead to obesity in bearded dragons, putting stress on their organs and causing health problems in the long run. Monitor your bearded dragon’s weight, and adjust its diet accordingly to prevent overfeeding.
  • Impaction: If a bearded dragon consumes something too large or indigestible, it can cause impaction or blockage in the digestive system. Impaction can stunt growth and lead to lethargy or a loss of appetite. Provide appropriate-sized food items and a clean environment to reduce this risk.
  • Parasites: Internal parasites can hinder your bearded dragon’s growth by stealing vital nutrients. Regular veterinary check-ups and fecal tests help diagnose and treat these issues.

Keeping a watchful eye on your bearded dragon’s size, while providing a balanced diet and proper care, will not only help it reach its full potential but also ensure that it remains in peak condition. Reach out to a reptile veterinarian if you have concerns about your bearded dragon’s growth or overall health.

Tips for Growing Your Bearded Dragon to a Healthy Size

Growing your bearded dragon to a healthy size is key for their longevity and overall well-being. By following these tips, you can help your bearded dragon achieve optimal growth and thrive in your care:

  • Provide a balanced diet: Include a mix of insects, greens, and fruits to accommodate their nutritional needs. Calcium and vitamin supplements are essential for maintaining proper bone health and development.
  • Ensure proper temperature and lighting: Install quality UVB lights and heating lamps to maintain an ideal temperature range in your bearded dragon’s enclosure. A basking area of 95-110 degrees Fahrenheit and cooler areas around 80-85 degrees Fahrenheit allow for proper thermoregulation.
  • Create a stress-free environment: Reduce stress by providing a spacious enclosure, adequate hiding spots, and a consistent routine. Limit disturbances or loud noises around the habitat to create a comfortable, stress-free ambiance.
  • Monitor growth: Regularly measure your bearded dragon to track its growth and identify any potential problems early.
  • Schedule veterinary check-ups: Routine visits to a reptile veterinarian help prevent and address health issues that could hinder your bearded dragon’s growth. Fecal tests and routine examinations are crucial for ensuring your pet’s overall health.

By following these guidelines and providing the best possible care, you can enjoy the companionship of a happy, healthy bearded dragon that reaches its full potential. So, take the journey with your bearded buddy and experience the rewarding world of reptile ownership.


In conclusion, understanding the full-grown bearded dragon size is a crucial aspect of their care, helping you provide the proper habitat, diet, and attention. Different factors can influence their size, but with a little attention to detail and a commitment to their well-being, you’ll create an ideal environment for your bearded dragon to flourish.

By following the tips and information provided in this article, you can become a responsible and knowledgeable bearded dragon owner, contributing to the longevity and happiness of your scaly companion.

avatar William
William is a respected pet enthusiast with expertise in reptiles and birds. With extensive experience caring for these animals, he shares his knowledge through engaging and informative articles in various publications. He is an active member of pet-related organizations, volunteering regularly at shelters and promoting animal welfare and conservation. read more...

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