Rat Cage Size Calculator

Your details

How many rats will share this cage. Rats are social and should be kept in pairs or groups.
rats
The longest horizontal dimension of the cage floor.
in
The shorter horizontal dimension of the cage floor.
in
Total height of the cage interior. Taller cages allow more climbing levels.
in
Minimum follows the National Fancy Rat Society bare minimum. Recommended is the more generous welfare-focused guideline.
Rats this cage fitsCage is large enough
9.4rats

Maximum rats based on the selected space standard

Cage volume23.5cu ft
Floor area6sq ft
Volume needed5cu ft
Floor area needed5sq ft
Volume surplus / deficit18.5cu ft
Space per rat11.75cu ft
Cage volume (cu ft)23.5
Volume needed (cu ft)5

Cage is adequate for 2 rats.

  • Your cage provides 11.75 cu ft per rat, which meets the recommended standard of 2.5 cu ft per rat.
  • You could comfortably add up to 7 more rats to this cage under the recommended guideline.
  • Floor area matters as much as volume: rats need horizontal space for foraging and socialising, not just vertical height.

Next stepEnrich the cage with hammocks, platforms, tunnels and foraging spots. More enrichment reduces stress even in a cage that already meets the space minimum.

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