Paint Coverage Calculator
Standard emulsion covers ~12m² per litre per coat. Two coats is the default.
Result
Wall area38.4 m²
Minus openings32.7 m²
Paint needed5.5 L
5L tins2
2.5L tins3
With 10% spare6 L
Paint Coverage Calculator — FAQs
Does the ceiling count?
No — this calculates walls only. Ceiling = length × width as a separate surface, usually in dedicated ceiling white.
Why might I need more?
New plaster, dark-to-light colour changes, and textured walls all drink paint — new plaster needs a mist coat (watered-down first coat) on top.
Need a Custom Tool Built?
We build calculators, estimators and internal tools for businesses in the UK and North America.
Get a QuoteEmbed this Paint Coverage Calculator on your site
Free to use — paste this snippet into any webpage. It auto-resizes and includes a small attribution link. Add ?theme=dark to the iframe URL for dark mode.