Enter your Number of Regular Chickens and Bantam Chickens, choose your Housing Situation and Units, and the Chicken Coop Size Calculator figures out your Minimum Coop Size, Space for Each Breed, Nesting Boxes Needed, and Recommended Run Space to keep your flock comfortable.
Minimum Coop Size Required
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Space for Regular Chickens
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Space for Bantam Chickens
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Nesting Boxes Needed
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Recommended Run Space
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Regular-sized chickens need 3-5 square feet per bird in the coop, while bantam chickens need about 2 square feet per bird. This assumes they have access to outdoor space during the day.
If chickens don't have access to outdoor runs or free-range time, you'll need to provide significantly more space - typically 8-10 square feet per regular chicken and 4-6 square feet per bantam chicken.
You need approximately one nesting box for every 3-4 hens. Hens often share boxes and prefer to lay where other hens have laid, so you don't need one box per chicken.
For 10 regular-sized chickens, you'll need a minimum of 30-50 square feet of coop space, plus 100 square feet of run space if they're not free-ranging during the day.
Generally yes, but extremely large coops can be harder to heat in winter and may make chickens feel less secure. Aim for adequate space with good ventilation rather than excessively large dimensions.
Yes, you can house regular chickens and bantams together, but monitor for bullying. Calculate space requirements separately for each type to ensure adequate room for all birds.
Provide at least 10 square feet of outdoor run space per regular chicken and 8 square feet per bantam chicken if they're not free-ranging. More space is always better for chicken health and happiness.
Overcrowding leads to stress, increased aggression, pecking problems, poor air quality, higher disease risk, and reduced egg production. Adequate space is essential for flock health.