This tool provides a general estimate and does not replace professional veterinary advice.
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What is the Bearded Dragon Tank Size Calculator?
The Bearded Dragon Tank Size Calculator recommends minimum tank dimensions for bearded dragons based on adult size. Undersized housing is one of the most common and most fixable welfare problems in pet keeping, it affects everything from stress levels to exercise to litter/waste management.
Bearded dragons generally live 8-12 years when they are well looked after. Diet-wise they are an omnivore, which shapes almost every feeding decision you make. Adults need a 120x60x60cm enclosure with a basking surface around 40C, a cool end near 24C, and a strong linear UVB tube. Loose sand is a common impaction risk for juveniles. Health problems that show up most often in bearded dragons include metabolic bone disease from inadequate UVB, impaction, atadenovirus, which is part of why tracking this over time pays off.
Bearded Dragon quick facts
| Measure | Bearded Dragon |
|---|---|
| Typical lifespan | 8–12 years |
| Adult weight | 0.7–1.3 lb (0.3–0.6 kg) |
| Diet | Omnivore |
| Mature at | About 1.25 years |
| Egg incubation | 55–75 days |
| Clutch size | 15–30 eggs |
| Humidity | 30–40% |
How does the Bearded Dragon Tank Size Calculator work?
The recommendation is based on published care-guide minimums for bearded dragons, scaled to the animal's current or expected adult size. It is a starting point, not a verdict. Somebody who has actually examined your bearded dragon will always know more than a formula does.
Factors that matter
- Adult size: housing should be sized for the animal's full-grown dimensions, not its current size if still young
- Number of animals being housed together, since space needs don't simply divide evenly
- Activity level and natural behavior, such as climbing, digging or swimming space
- Whether the space is temporary (travel/carrier) or permanent (everyday housing)
How do you use the Bearded Dragon Tank Size Calculator?
- Enter the adult weight in whichever unit you use (lb, oz, kg)
- Enter the nose-to-tail length in whichever unit you use (in, ft, cm)
- Answer "How many animals share this space?"
- Pick your time spent in the enclosure (Only to sleep, Part of the day, Most of the day, ...)
- Press Calculate, then read the result alongside the sources listed below
Use this alongside your own observation, not instead of it. You notice changes in your bearded dragon that no calculator can pick up.
For related questions, see the other housing tools or browse every bearded dragon tool.
Before you rely on this
Averages hide a lot of variation. The figure here reflects what is typical for bearded dragons, but your bearded dragon may sit well outside it for perfectly ordinary reasons. Use the result to spot changes over time in your own animal rather than to compare it against other people's pets.
Sources and references
The formulas, reference ranges and species data behind the Bearded Dragon Tank Size Calculator come from these veterinary references, professional bodies and published research.
- RSPCAAdvice and Welfarerspca.org.uk(opens in a new tab)
- Merck Veterinary ManualExotic and Laboratory Animalsmerckvetmanual.com(opens in a new tab)
- pdsa.org.ukPDSA Pet Health Hubpdsa.org.uk(opens in a new tab)
- Merck Veterinary ManualReptilesmerckvetmanual.com(opens in a new tab)
- ARAVAssociation of Reptilian and Amphibian Veterinariansarav.org(opens in a new tab)
- Built on veterinary referencesFormulas and ranges come from veterinary manuals, university research and welfare bodies, listed above for you to check.
- Instant resultsNo page reload, no waiting and no account. Enter your details and the result appears straight away.
- Private by designCalculations run in your browser. Nothing you enter is stored on our servers or shared with anyone.
- Always freeEvery XpertsPet tool is free to use, with no premium tier and nothing to sign up for.