Home Calculators

Whether you're cutting or painting, installing carpeting or flooring, or laying tile, use these calculators to check the amount of materials you'll need.

Interior Paint Calculator

Use this tool to estimate how many gallons of wall, ceiling, and trim paint you'll need for an entire room. » See More

Wall Paint Calculator

Use this tool to estimate how many gallons of paint you'll need to paint the walls of a room. » See More

Ceiling Paint Calculator

Estimating ceiling paint is pretty easy. Calculate the area to be painted, and we'll tell you how many gallons of ceiling paint you'll need. » See More

Window Paint Calculator

Use this tool to estimate how many gallons of paint you'll need to cover the trim on your windows. » See More

Use this tool to estimate how many gallons of paint you'll need to paint a door and its trim. This tool assumes you're painting both sides of a door and its surrounding trim. To calculate trim paint only (for example, for a doorway that doesn't have a door), use the window paint calculator instead. » See More

Wallpaper Calculator

Calculating the number of wallpaper rolls you'll need to paper a room can be tricky. You'll need to consider the size of the roll, the area of the room, the number of windows and doors to paper around, and the repeat on the pattern you choose. Use this tool to get a good idea of how many rolls you'll need to buy. » See More

Ceramic Tiles Calculator

Use this tool to estimate how many ceramic tiles you'll need for your floor or walls. Round up to the nearest foot, and enter dimensions of regularly shaped areas only. » See More

Exterior Paint Calculator

Use this tool to estimate how many gallons of paint you'll need for an exterior project. » See More

Wood Floors Calculator

Estimating the amount of wood flooring you need is not quite as simple as it seems. Enter the dimensions of the room to be covered, and we'll estimate the amount of flooring you'll need to buy. If your room has irregular dimensions divide it into regular areas, measure each area, and add the totals. » See More

Vinyl Tiles Calculator

Use this tool to estimate how many vinyl tiles you'll need to cover your floor. Round up to the nearest foot, and enter the dimensions of a regularly shaped area only. If your room is irregular (for example, if it's L-shaped), use this calculator separately for regular sections, then add the results together. » See More