Calculate coop size for your flock
Coop Size
24
sq ft
Run Size
60
sq ft
Nest Boxes
2
Roosting
5 ft
Eggs/Week
30
Inputs
Result
Coop = 6 x 4 = 24 sq ft. Run = 6 x 10 = 60 sq ft. Nest boxes = ceil(6/4) = 2. Roosting = (6 x 10) / 12 = 5.0 ft. Feed = 6 x 0.25 x 7 = 10.5 lbs/week. Eggs = 6 x 5 = 30/week.
Inputs
Result
Coop = 12 x 6 = 72 sq ft. Run = 12 x 4 = 48 sq ft (free range reduces run). Nest boxes = ceil(12/4) = 3. Roosting = (12 x 10) / 12 = 10.0 ft. Feed = 12 x 0.4 x 7 = 33.6 lbs/week. Eggs = 12 x 5 = 60/week.
Standard chickens need 4 square feet per bird inside the coop and 10 square feet per bird in the run. Bantams need less, large breeds need more.
Plan for 1 nest box per 3-4 hens. Chickens often prefer to share the same box, so you may not need as many as you think.
Yes, but you still need a secure coop for nighttime protection. Even free-range chickens benefit from some enclosed run space for days you can't let them out.
Allow 8-10 inches of roosting bar per standard chicken. Roosts should be at least 2 feet off the ground and higher than the nest boxes.
Calculate needs for all your animals
Last Updated: Feb 12, 2026
This calculator is provided for informational and educational purposes only. Results are estimates and should not be considered professional financial, medical, legal, or other advice. Always consult a qualified professional before making important decisions. UseCalcPro is not responsible for any actions taken based on calculator results.