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

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.