How many square miles are in 1,200 acres? How much? What is 1,200 acres converted to square miles? Use the calculator above to convert between acres and square miles. Type in 1200.5 for 1200 and a half, 1200.25 for 1200 and a quarter, 1200.75 for 1200 and three quarters, etc...ncG1vNJzZmivp6x7pbvLpZirrJmisrR6wqikaJuRobC2uMCtnGiZopqucK3Cq5ysZ6OmwqK%2BxGakoqSVqHxyfo9p