How Big Do Rankin's Dragons Get?
Rankin's dragons reach 9 to 12 inches, roughly half the length of a bearded dragon. Almost every husbandry mistake made with them comes from not adjusting for that difference.
Published adult size figures
| Figure | Value | Notes |
|---|---|---|
| Adult | 9-12 in | Published range |
| Bearded dragon, for contrast | 18-24 in | Roughly twice the length |
| Build | Stockier in proportion | Shorter tail relative to body |
Checked September 20, 2026 against the sources at the foot of this page. Where sources differ the range is shown rather than averaged.
Getting there
Reaches adult size in the first year or so
They finish growing well before a bearded dragon does, which is one signal that the feeding schedule should change.
Proportionally shorter tail
Which is part of why they look stockier than a bearded dragon of similar body length.
What that size means in practice
A smaller enclosure than a bearded dragon, not a small one
At 9 to 12 inches they need less space than a bearded dragon, but they are still active diurnal baskers needing a proper thermal gradient and UVB.
Portion size should follow the animal
Halving the length roughly means rethinking the portions rather than keeping the schedule.
Common questions
How big do Rankin's dragons get?
Adults reach 9 to 12 inches, which is roughly half the length of a bearded dragon at 18 to 24 inches. They are proportionally stockier with a shorter tail.
Do Rankin's dragons need a smaller enclosure than bearded dragons?
They need less space, but not a small enclosure. They are active diurnal baskers requiring a proper thermal gradient and UVB regardless of size.
Can I feed a Rankin's dragon like a bearded dragon?
Not on the same portions. They are roughly half the size, and feeding them a bearded dragon's schedule is the commonest route to obesity in this species.