Independent buying guides for reptile terrariums

Reptile Enclosure Size Checker

Choose your species and enter your enclosure's inside dimensions. We compare each side with a commonly recommended minimum for one adult.

Result

Result
Meets the minimum
Length
36 in, OK
Depth
18 in, OK
Height
18 in, OK
Volume
50 gal

These are minimums many keepers treat as a floor, not a target. Bigger enclosures with a proper gradient and enrichment are better.

How this calculator works

Each species has a length, depth and height minimum. Your enclosure passes on each side it meets or exceeds. Gallons are shown for reference using 231 cubic inches per US gallon, though floor space and height matter more than gallons.