Should I subtract doors and windows from the area?

For accuracy, subtract large openings from your wall area first — this calculator assumes the area you enter is the net paintable surface.

Paint Calculator

Estimate how much paint you need

Wall Area (m²)

Number of Coats

Coverage per Liter (m²)

10.00L

Paint Needed

Paint Needed (L) = (Wall Area × Number of Coats) / Coverage per Liter

Example 1

Area=50, Coats=2, Coverage=10

10 liters of paint needed

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