Paint & Coatings calculators

Guessing paint quantities usually ends with tins left in the shed or a second trip to the paint shop for a batch that does not quite match. These calculators work from real coverage rates and the number of coats each surface needs, so the litres you buy suit the walls in front of you. They cover interior paint, plasterboard, render and exterior finishes, with wastage already allowed for, whether the job is a single room or the whole house.