Paint & Coatings calculators

Buying paint by eye usually ends with half-empty tins in the garage or a second trip to the store for a batch that is slightly off. These calculators work from real coverage rates and the number of coats each surface needs, so the litres you buy fit the walls in front of you. They cover interior paint, plasterboard, plaster and exterior cladding finishes, with wastage built in, for a single room or a full repaint.