A FREE ONLINE CALCULATOR

Construction & Home

Building and renovating

Calculators for building and renovating: how much paint and how many tiles a job really needs.

Paint Calculator Work out how much paint you need from the wall size, number of walls, and coats — in gallons or litres, with a buy-extra allowance. Tile Calculator Calculate how many tiles you need for a floor or wall — from the area and tile size, including a 10% allowance for cuts and breakage.