Find free construction calculators for common building and home improvement projects. Calculate concrete, paint, flooring, tile, gravel, roofing, deck materials, room size, and more quickly and accurately.
Choose a calculator below, enter your measurements, and get your results instantly.
The Backsplash Tile Calculator tells you how many tiles you need for a kitchen or bathroom backsplash, based on its length, height,…
Calculate →The Brick Calculator tells you how many bricks you need for a wall, accounting for mortar joints and waste. Simply fill in…
Calculate →Calculate how much carpet you need, in square feet and square yards.
Calculate →The Ceiling Tile Calculator tells you how many drop ceiling tiles you need for a room, based on its size and the…
Calculate →The Cement Block Calculator tells you how many concrete or cinder blocks you need for a wall, accounting for mortar joints and…
Calculate →Calculate how many cubic yards of concrete you need for a slab.
Calculate →The Drywall Calculator tells you how many sheets of drywall you need for a room, based on wall dimensions and sheet size.…
Calculate →Calculate how much flooring material you need, including waste allowance.
Calculate →Estimate how many tons or cubic yards of gravel you need.
Calculate →Estimate how many gallons of paint you need for a room or wall.
Calculate →The Pipe Size Calculator estimates the minimum pipe diameter needed for a given flow rate and target velocity, and recommends the nearest…
Calculate →The Pipe Velocity Calculator finds how fast water (or another fluid) is flowing inside a pipe, based on the flow rate and…
Calculate →The Pipe Volume Calculator finds the internal volume of a pipe, in cubic feet and gallons, based on its diameter and length.…
Calculate →The Pipe Weight Calculator estimates the weight of a length of pipe, based on its diameter, wall thickness, and material density. Simply…
Calculate →The Rise Over Run Calculator finds the slope of a line or surface as a ratio, percentage, and angle, from a rise…
Calculate →The Roof Pitch Calculator helps you find your roof’s pitch, angle, and rafter length using either a rise-and-run measurement or a known…
Calculate →Calculate roofing squares needed based on roof size and pitch.
Calculate →Calculate the area and perimeter of a room.
Calculate →Calculate how much sand you need by volume and weight.
Calculate →The Sheetrock Calculator tells you how many sheets you need for a room, based on wall dimensions and sheet size. Simply fill…
Calculate →The Shower Tile Calculator tells you how many tiles you need for a shower or bathroom enclosure, based on wall length, height,…
Calculate →Calculate the area of a space in square feet.
Calculate →The Stairs Calculator tells you how many steps you need, the exact riser height, and total horizontal run for a staircase, based…
Calculate →Find out how many tiles you need for a floor or wall.
Calculate →The Tile Installation Cost Calculator estimates the total material and labor cost of a tiling project, based on area, tile price, and…
Calculate →Calculate how many wallpaper rolls you need for a room.
Calculate →