How this calculator works
Enter the values for first value, second value and review the units before calculating.
Formula / method
Paint = area × coats ÷ coverage × (1 + waste ÷ 100)
Worked example
80 m², 10 m²/L coverage, two coats and 10% waste requires 17.6 L.
Assumptions and limitations
Coverage is the manufacturer’s practical coverage for the surface and each coat.
Texture, porosity, color changes and application method can materially change coverage.