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Paint Coverage Calculator

Add the walls, set your coats and paint coverage, then get a plain estimate before buying supplies.

Before the drop cloth

Estimate the paint, not the whole project.

Add walls, subtract their openings, then account for coats and the coverage on your can.

Wall 1
Gross wall area
96 sq ft
Openings subtracted
0 sq ft
Paintable area
96 sq ft
Recommended paint
0.55 gal

Openings can be windows, doors, shelves, or any area you do not plan to paint. Round up to your paint can's available size.

A couple of useful details

Estimate paint before you buy it.

Enter the walls, openings, coats, and coverage stated on the paint container. The result is a planning estimate; surfaces, prep, and application change real-world use.

Example

Planning more than one coat? Set the total number of coats before choosing a paint-can size.

Should I subtract doors and windows?

Usually, yes. Add openings to the wall they belong to so the estimate can subtract their area; leave an opening out when you expect to paint it.