🐀 Rat Cage Size Calculator
Plan adequate housing volume and floor space to keep mischiefs of rats healthy and enriched.
Include full platforms; hammocks do not count as levels.
How to Use This Calculator
Count your rats
Include bonded groups housed together.
Enter usable levels
Only count shelves and platforms large enough for all rats to rest comfortably.
Compare cages
Use the results when shopping for cages or designing DIY enclosures.
Formula
Volume (cu ft) = max(Rats × 2.5, 6)
Floor Area / Level (sq in) = [Volume ÷ Levels] × 144
Each rat should have at least 2.5–3 cubic feet. Larger bucks and senior rats benefit from even more floor space and low ramps.
Full Description
Adequate cage space prevents obesity, boredom, and respiratory issues. Provide varied levels, hides, chew toys, and hammocks for enrichment.
Combine this calculation with daily free-roam time and regular cage cleaning to maintain a healthy mischief.
Frequently Asked Questions
Can I house rats in aquariums?
Aquariums restrict ventilation and enrichment—avoid them. Use tall wire cages with solid shelves instead.
How often should I rotate toys?
Swap toys weekly to encourage exploration and reduce boredom.
Do males need more space than females?
Bucks are larger and may need wider ramps and more floor space for comfort.
What about multi-level cages?
Ensure levels are connected safely. Rats love climbing; provide ramps or ropes and ensure no dangerous falls.