Chicken Coop Size Calculator
Calculate the recommended interior space for a chicken coop based on the number of chickens and breed size.
Published by:
isCalculator Editorial Team
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How to use this tool?
This calculator determines the recommended interior floor space for your chicken coop based on flock size and breed.
- Enter the number of chickens in the "Number of Chickens" field (minimum 1).
- Select your breed size from the dropdown:
- Small (e.g., Bantam) — 3 sq ft per bird
- Medium (e.g., Rhode Island Red) — 4 sq ft per bird (default)
- Large (e.g., Jersey Giant) — 5 sq ft per bird
- Click "Calculate" to see the total recommended coop size in square feet.
- The result shows the total square footage and a breakdown of the calculation (chickens × sq ft per bird).
Note: All measurements are in imperial units (square feet). This calculator provides minimum interior space only; outdoor run space is not included.
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Frequently Asked Questions
The minimum recommended interior coop space is 3 square feet per small breed, 4 square feet per medium breed, and 5 square feet per large breed.
No, this calculator only estimates the interior coop space. Outdoor run space should be at least 8-10 square feet per chicken.
Yes, select 'Small' breed size to get 3 square feet per bantam chicken.