Square feet in decimal format; Calculators. Should you find yourself needing to calculate an area of square feet in an 'L' shape, consider dividing the shape up into rectangular sections and Thank you. She holds a Master of Science in agricultural engineering from Texas A&M University. For a wall width of 10 feet, the perimeter is 4 times10 feet equals 40 feet. If you were working with units other than feet, convert the area to square feet. By creating an account you agree to the Hunker, "Painting and Wallpapering Secrets From Brian Santos, the Wall Wizard"; Brian Santos; 2010, "Home Improvement All-in-One for Dummies"; Roy Barnhart, et al. ft. = 240 sq. Use the appropriate formula for the shape. You can measure the perimeter of a room to calculate the wall area but if you already know the floor area of the room -- from floor plans, for example -- it may be quicker to calculate the wall area based on that number, if your room is square or round. Fact Check: What Power Does the President Really Have Over State Governors? How Do You Calculate the Square Feet of an Area. For example, if you measured a wall at 12 feet long by 8 feet high, the area would be 96 square feet. All you have to do is enter the price per unit area and voila, you have the total cost of materials in a single click! To calculate the area of a circle we use the formula: π x (diameter/2), This gives you your square feet figure (ft. Do not use calculations for anything where loss of life, money, property, etc could result from inaccurate calculations. Calculate square footage from foot and inch measurements. If the shape is irregular, you may have to calculate the area in segments. to calculate the overall square footage. liable for any damages or monetary losses arising out of or in connection with the use of it. For example, if you used inches to measure the sides of the object, divide the resulting measurement in square inches by 144 to obtain the area in square feet. Is the Coronavirus Crisis Increasing America's Drug Overdoses? If the radius is 5.64 feet, the perimeter is 6.28 times 5.64 feet equals 35.42 feet. Our calculator gives you the option of calculating the exact cost of materials. Festival of Sacrifice: The Past and Present of the Islamic Holiday of Eid al-Adha. Hunker may earn compensation through affiliate links in this story. *Square Footage is also known as (a.k.a) square feet, square ft, SqFt, Sq.Ft., sq.ft., ft2 & ft 2 **This Calculator also calculates square inches, total height in feet, total height in inches, total length in feet and total length in inches. If the perimeter is 40 feet and the height is 10 feet, multiply 40 times 10 feet to get a wall area of 400 square feet. Multiply the radius by 6.28 ( 2 pi) to find the perimeter of the room. If the area is 100 square feet, for example, the width of one wall is 10 feet.