Remember, in order for the area to have units of square inches, the dimensions of the shapes must be measured in inches. Math explained in easy language, plus puzzles, games, quizzes, videos and worksheets. Square Quadrilaterals Rectangle Calculator Geometry Index. If the area for which you are trying to calculate is not a rectangle, you can instead use the appropriate formula below to find the area in square inches for several shapes. Enter the side length, area, diagonal or perimeter and the other values are calculated live. For example, heres how to convert 5 square inches to square millimeters using the formula above. The area in square millimeters is equal to the area in square inches multiplied by 645.16. This is the same formula used to calculate square footage, except there the units of length and width are in inches rather than feet. Since one square inch is equal to 645.16 square millimeters, you can use this simple formula to convert: square millimeters square inches × 645.16. You can use this square inches calculator to calculate siding square inches or any other square inches. Thus, the area is equal to length times width, both measured in inches. Directions: Enter inches into the calculator below. The next step is to multiply the length and width to obtain the result in square inches. Use our length converter to convert your units to inches. If your measurement is in another unit of measure, such as centimeters, then you’ll need to convert to inches first. The first step to calculate the area of a rectangle in square inches is to measure the length and width of the area in inches using a ruler or tape measure. We have an article covering how to measure for. Once you have your square footage figure, you can work out what materials you might need. For example, calculating the area of a rectangular shape can be done in a few easy steps. Square footage Length (feet) × Width (feet) To give an example, if a bedroom measures 16 feet by 12 feet, the calculation would be 16 multiplied by 12, resulting in a square footage of 192 (16 × 12 192). Of course, not all areas are perfect squares, but you can still calculate the area in square inches of a variety of shapes. Materials alone average per square foot or between and 0 per square foot. One square inch is equal to the area of a square with each side equal to one inch in length. They are also referred to as inches squared. Square inches are a unit of area measurement of a space.
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