Room Area Calculator
Calculate room area in square feet, square meters and square yards.
Results
Measuring room area is the starting point for almost every home project - from buying flooring and carpet to planning furniture layouts and estimating paint quantities. This calculator takes your room length and width in feet or meters and gives you the area in square feet, square meters and square yards. Most US contractors work in square feet while international projects use square meters.
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Frequently asked questions
Multiply length by width. A room that is 12 feet by 10 feet is 120 square feet. For L-shaped rooms, split them into two rectangles and add the areas together.
Multiply square feet by 0.0929. So 120 sq ft is about 11.15 sq m. Or divide square meters by 0.0929 to get square feet.
A standard bedroom is 120-150 sq ft (11-14 sq m). A master bedroom is typically 200-350 sq ft (18-32 sq m). The minimum for a single bedroom per building code is usually 70 sq ft.
Carpet is traditionally sold by the square yard in the US. One square yard equals 9 square feet, so a 120 sq ft room needs about 13.3 sq yd of carpet.
Yes, always add 5-15% waste factor depending on the material. Tile typically needs 10-15% extra for cuts and breakage, hardwood about 5-10% and carpet about 10%.