How To Calculate Square Miles

To calculate square miles, simply measure the length of a piece of land in miles and the width of a piece of land in miles. Multiply these two numbers and you'll know the square miles. If the land in question looks less like the shape of Wyoming than, say, West Virginia, you may need to measure smaller sections and add the square mileage.

Square miles is found by measuring an area in one direction in miles and the other direction in miles and then you multiply those two numbers together.