Paint calculator

Estimate the litres of paint for a room's walls and ceiling from its size, openings, coats and the coverage on the tin.

How it works

Paintable area = wall area (perimeter × height) minus doors and windows, plus the ceiling if chosen. Litres = area ÷ coverage × number of coats. Coverage differs by paint and surface, so enter the figure printed on the tin.

Always confirm measurements for a purchase or registration with official records.

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