The number of cattle that can graze per acre depends on many factors, including the size of the cattle, the length of the grazing season and the expected forage yield. Forage yield is determined by the type of pasture and by soil quality and climate.
Determining how many cattle can graze on an acre requires some math skills and knowledge of local conditions. Since overgrazing is a leading cause of reduced forage yield, proper management is important. Cattle should be rotated off the pasture periodically to allow it to rest and recover. Many areas have an agricultural extension office that can provide specific information about local conditions and average yields.