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Cat Housing Calculators and Tools

These calculators size your cat's living space: the minimum and recommended dimensions, how much bedding or substrate to buy and what fits in the space you have. The tool is free, quick and based on cat reference data.

Housing1 tool

The cat housing tool

Cat Housing tools: what they help with

These calculators size your cat's living space: the minimum and recommended dimensions, how much bedding or substrate to buy and what fits in the space you have. Too little space is one of the most common welfare problems in pets. The right size gives a cat room to move, rest and behave normally.

What to know about housing and enclosure size for cats

Cats live indoors comfortably given vertical space to climb, scratching surfaces, a quiet litter area and daily play that satisfies their hunting drive. Target humidity is around 40-60%.

Cat quick facts

Reference values for cats from the species data behind this tool.
MeasureCat
Typical lifespan12–18 years
DietObligate carnivore
Mature atAbout 1 years
Pregnancy63–67 days
Litter size1–6
Humidity40–60%

A practical tip

Treat the minimum as the floor, not the goal. Bigger is almost always better, especially for active or social species.

Other cat topics

Most questions lead to another. You may also find these useful: cat age tools, cat behavior tools, cat breeding tools and cat cost tools. Or see every cat tool in one place.

Housing tools for other pets

The same kind of tool exists for other species, each using that animal's own reference data: dog housing, rabbit housing, hamster housing and guinea pig housing.

Frequently asked questions

What size enclosure does a cat need?

The housing calculators give a minimum and a recommended size based on adult body size and activity level, drawn from welfare guidance for the species.

What humidity does a cat need?

Aim for about 40–60% relative humidity.

Which cat housing tool should I use first?

Most people start with the Cat Carrier Size Calculator, the most used tool in this group. If your question is more specific, the list above describes what each of the 1 tools does.

How accurate are the results?

They are estimates based on published reference data for cats, and each tool lists its sources. Individual animals vary, so treat results as a guide and check health decisions with your vet.