Calculators
Room calculators
Type the sizes, get the answer, see the math. Or walk the rooms once with PlaceAnew and read every size off the plan.
- Square footage calculator: rooms, L shapes and whole housesMultiply the room's length by its width, both in feet: the result is square feet. Turn inches into feet first by dividing them by 12. For an L-shaped or irregular room, split it into rectangles, work out each one and add them. For a whole house, add up every room.Contractors and estimators, Kitchen and bath remodelers, Interior designers, Real estate and property managers, Homeowners
- Paint calculator: how much paint do I need for a room?Multiply the room's perimeter by the wall height, take off 21 square feet for each door and 15 for each window, multiply by the number of coats and divide by 350 square feet a gallon, the figures Sherwin-Williams teaches painters. Round up to whole gallons.Contractors and estimators, Homeowners, Interior designers, Real estate and property managers
- Drywall calculator: how many sheets of drywall do I need?Work out the wall area, perimeter times wall height, less doors and windows, and add the ceiling if it gets board too. Add 10 to 15% for cutting and piecing, as Lowe's advises, then divide by the sheet's area, 32 square feet for a 4 by 8 sheet, and round up.Contractors and estimators, Homeowners, Kitchen and bath remodelers
- Tile calculator: how many tiles do I need?Multiply the floor's length by its width for square feet, then add 10% for a straight lay or 15% for a diagonal or herringbone lay, Floor & Decor's rule. Divide by one tile's area, its width times its length in inches divided by 144, and round up.Contractors and estimators, Kitchen and bath remodelers, Homeowners, Interior designers
- Flooring calculator: how much flooring do I need?Add up the floor area of every room, length times width in feet, then add about 10% for cuts and waste, Floor & Decor's standard for most layouts, or 15% for diagonal or herringbone. Divide by the square feet in one box, printed on the carton, and round up.Contractors and estimators, Homeowners, Real estate and property managers, Interior designers
- Carpet calculator: how much carpet do I need?Multiply the room's length by its width in feet, add 5 to 10% for waste, seams and pattern matching, and divide by 9 for square yards. Carpet comes off a roll usually 12 feet wide, so each piece is cut at the roll's width.Contractors and estimators, Homeowners, Real estate and property managers
One walk. Plan, 3D and kitchen.
Scan with an iPhone or iPad Pro and get a measured floor plan, a 3D model and CAD files from the same walk.