[header] How to determine how many cattle can be grazed on a pasture [title] Determine the amount of land you have available. [step] This will be the first of one of the most important pieces of information you need in order to find how many cattle you can graze. This number can be in acres or hectares. 
For example, you may have a quarter section (equivalent to 160 acres) available for grazing. [substeps] You can even work with as little as one acre.