Pasture Rotation Calculator
Calculate paddock count, grazing days per paddock, and rest periods for a rotational grazing system.
Results
Visualization
How It Works
Rotational grazing divides pasture into paddocks and moves animals frequently, giving forage 30-90 days to rest and regrow. Compared to continuous grazing, rotational grazing produces 20-30% more forage and supports higher stocking rates.
The Formula
Paddocks = (Rest Period ÷ Grazing Period) + 1
Acres/Paddock = Total Acres ÷ Paddocks
Acres/Paddock = Total Acres ÷ Paddocks
Variables
- Rest Period — Days forage needs to regrow (cool season: 30-45 days spring, 60-90 fall)
- Grazing Period — Days stock stays in one paddock (1-3 days for intensive, 7-14 for moderate)
- +1 Paddock — The extra paddock accounts for the one currently being grazed
Example
100 acres, 45-day rest, 3-day graze: paddocks = 45/3 + 1 = 16. Each paddock = 6.25 acres. Full cycle = 48 days.
Tips
- Move cattle when grass is grazed to 3-4 inches — never let them graze below 2 inches.
- More paddocks = longer rest = more forage. Diminishing returns above 20 paddocks.
- Extend rest periods in late summer and fall when grass growth slows.
- Temporary electric fence is the cheapest way to create paddocks for rotational grazing.
- Back-fence to prevent cattle from returning to recently grazed areas.