Paint & Coatings calculators

Guessing paint quantities usually ends with unused tins taking up space in a small flat or a second trip to the 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 order suit the walls and ceilings in front of you. They cover interior paint, plastering and skim coat, and exterior finishes in a humid climate.