To figure out the square footage of an area, you will need a measuring tape and possibly a calculator. Measure length and width and then multiply the two together. The process should take less than five minutes. More »

To calculate the square footage of a square or rectangle, measure the length and width of the area in feet, then multiply length by width to determine square footage. Different formulas are used to calculate the square f... More »

Square footage of a room is a measurement of area, so calculating it requires the length of the room and the width. By placing a tape measure at the edge of one wall and measuring a perfectly straight line to the opposit... More »

To use a square footage calculator to measure a room, first find its length and width measurements, either in feet or feet and inches. Input the measurements into the corresponding boxes of the calculator, and then hit C... More »

To calculate the square footage of a square or rectangle, measure the length and width of the area in feet, then multiply length by width to determine square footage. Different formulas are used to calculate the square f... More »

Changing square feet to square meters requires use of basic conversion where one square meter equals 10.76 square feet. Hence, one square foot equals approximately 0.093 square meters. A house that has 2,500 square feet ... More »

To use a CFM (cubic feet per minute) calculator to determine airflow needs for a room, know variables such as the volume of the room and the number of times the air changes per hour from the fan/ventilation system and ap... More »