Construction calculators
Plan your project without waste: paint amount, floor and tile boxes, concrete volume and more. TudoCalc's construction calculators include a waste margin so you buy the right quantity.
Wall paint
Calculate how many liters of paint and cans you need from area and number of coats.
Floor & tiles
Find out how many boxes of flooring or tile to buy for a room, including waste margin.
Concrete volume
Work out how many cubic meters of concrete your slab or footing needs. Example: a 5 × 4 m slab 10 cm thick takes 2 m³.
Bricks per wall
Calculate how many bricks or blocks you need from the wall area and brick size, including waste.
Square footage
Enter width and length to get the area in square feet and square meters, adding several rooms at once. Example: a 10 × 12 ft bedroom is 120 sq ft.
Rebar weight
Calculate the weight of steel rebar from the diameter, length and quantity.
Stairs
Calculate the number of steps, riser height and tread depth from total height, using the Blondel rule.
Ramp slope
Calculate a ramp's slope in percentage, angle and ratio — and see if it is accessible.