Chicken Tractor Calculator
Pastured poultry tractor size, footprint, and feeders.
What it does
Chicken tractors graze flocks on fresh grass daily. Floor space per bird sets the size with moves doing the cleaning.
The tool above multiplies birds by space. Twenty five layers at 4 sq ft need 100 sq ft in a 10 by 10 ft tractor with 3 feeders. The metric match is 9.3 m2.
Layers want room. Four square feet each suits laying flocks while broilers manage two with daily moves.
Square footprints drag easiest. Ten by ten skids pull straight with two people, while long rectangles snag corners.
Daily moves feed birds. Fresh grass plus moved droppings keep feet clean and lawns fed.
How to use
- Pick imperial (ft) or metric (m).
- Enter bird count.
- Pick layers or broilers.
- Read area first.
- Read footprint next.
- Read feeders and move daily.
Formula
- birds
- Bird count.
- flock
- Layers or broilers.
Metric converts at 0.092903 m2 per sq ft with matching feeder counts.
Worked example
Example: 25 layers
Imperial defaults: 25 layers. These are also the default values, so the page opens on this answer.
- Flock: 25 layers.
- Rule: 4 sq ft per layer on pasture.
- Area: 25 x 4 = 100 sq ft.
- Layout: sqrt(100) is 10 ft by 10 ft.
- Feeders: ceil(25 / 12) = 3 feeders.
- Tool shows 100 sq ft, 10 ft by 10 ft, 3 feeders.
Reference table
| Flock | Area | Feeders |
|---|---|---|
| 10 layers | 40 sq ft | 1 feeder |
| 25 layers | 100 sq ft | 3 feeders |
| 50 broilers | 100 sq ft | 5 feeders |
Limits
- Floor math only. Predators need skirts.
- Wet ground needs more moves.
- Brooders need heat first.
- Waterers need separate counts.
Common mistakes
- Tiny tractors never moved.
- No skirts for digging predators.
- Broilers at layer space wastefully.
- One feeder for fifty birds.
- Parking on mud for weeks.
Try it yourself
Quick checks. Answers sit tucked under each question.
50 broilers?
Area is 50 x 2 = 100 sq ft. Layout is 10 ft by 10 ft. Feeders are ceil(50 / 12) = 5 feeders after rounding (4.17 rounds up).
10 layers?
Area is 10 x 4 = 40 sq ft. Layout is 6.3 ft by 6.3 ft after rounding (6.32). Feeders are ceil(10 / 12) = 1 feeder.
Questions
Floor area?
Multiply birds by square feet each. Here 25 x 4 = 100 sq ft.
Space per bird?
Layers 4 sq ft, broilers 2 sq ft each on pasture in this plan.
Footprint?
Square root of area for a square tractor. Here 10 ft by 10 ft.
Feeders?
One feeder per 12 birds. Here ceil(25 / 12) = 3 feeders.
Move daily?
Yes. Daily moves onto fresh grass keep birds clean.
Predator proof?
No. Predators need skirts and latches.