Free · No signup · Shareable results
Tools that do the chicken math for you
Every tool runs the same standards our guides defend in print — the 4 sq ft floor rule, published feed-consumption figures, waste rates by feeder type — and shows its sources. Results live in the URL, so you can share or bookmark any calculation.
The tools
Coop Size Calculator
Coop floor, run space, roost length, nest boxes, feeder space and daily water for your flock size.
Coop Capacity Checker
Enter any coop's interior dimensions and the box's bird claim — get the honest count by the 4 sq ft standard.
Feed Cost Calculator
Annual, monthly and per-dozen-egg feed costs — including the waste your feeder adds.
Winter Waterer Sizer
Daily gallons, the heater class rated for your lows, refill intervals and winter electricity cost.
Which tool when?
Planning a flock from scratch
Start here: your bird count in, the full space requirement out — then take the numbers shopping.
Standing in front of a specific coop
Its dimensions in, the honest bird count out. Six popular coops are already re-rated in our capacity dataset.
Budgeting the recurring bill
Feed is the biggest recurring cost of keeping chickens — see it per year, per month and per dozen eggs.
Prepping for the first freeze
Flock size and climate in; gallons per day, the heater class rated for your lows, and the winter electricity bill out.