Room & area calculators

2 free calculators · instant · nothing you enter is uploaded

Almost every other estimate starts with an area, which is why getting square footage right first saves work further down the line. These calculators handle simple rectangles, combinations of rectangles and irregular spaces, and they separate floor area from wall area, since one drives flooring and the other drives paint and drywall. Both return the units you will actually buy in, and both let you work room by room and add the totals at the end.