One 32 oz container of Ferti-Lome Grass & Weed Killer (16103) covers a variable area depending on the dilution and application rate. The manufacturer recommends: Easy-to-kill weeds: Mix 14 oz per gallon of water. Hard-to-kill weeds: Mix 26 oz per gallon of water. The label emphasizes thorough coverage but does not specify a fixed square-foot coverage per container.