Square Footage Calculator

Measure a house one room at a time and turn the total into a flooring order. The single room mode takes feet and inches on each side, so 12 ft 6 in becomes 12.5 without you doing the sum, and returns square feet, square yards, square metres and the perimeter. The room by room mode adds up to six rectangles together and lists each one beside the total. The flooring mode then applies a waste allowance, divides by the coverage printed on the carton and rounds up, because you cannot buy part of a box. Everything is measured as rectangles, so an L shaped room goes in as two of the six.

Calculator Type

Measured In

Feet and inches Metres and centimetres

The big box takes the whole feet or whole metres and the small one takes the remainder, so 12 ft 6 in and 3 m 80 cm are both entered as two numbers.

Length, Whole Feet *

Length, the Extra Inches

Width, Whole Feet *

Width, the Extra Inches

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Rooms Measured In

Feet Metres

Every room below is read in this unit, and the room-by-room breakdown comes back in it too. The total is always given in all four area units.

Room 1 Length (ft) *

Room 1 Width (ft) *

Room 2 Length (ft)

Room 2 Width (ft)

Room 3 Length (ft)

Room 3 Width (ft)

Room 4 Length (ft)

Room 4 Width (ft)

Room 5 Length (ft)

Room 5 Width (ft)

Room 6 Length (ft)

Room 6 Width (ft)

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