Chicken Run Size Calculator
How much outdoor space your flock needs
Per bird
10 sq ft
Total run
60 sq ft
Square run
8 x 8 ft
Minimum side length if square
How this is calculated
Baseline space per bird: bantam 8 sq ft, standard 10 sq ft, heavy 15 sq ft. Each hour of daily free ranging reduces the requirement by 8%, capped at 50%. These figures track guidance from most extension services and hobbyist consensus.