How Much Paint Do I Need for a Room?

Gallons for two coats in common room sizes with 8 ft ceilings, one door, one or two windows and 350 sq ft of coverage per gallon. Pick a size for 1 and 3 coats, primer and the ceiling.

Room (ft)Floor sq ftWall area to paintWalls (gallons)Walls + ceiling
8x864221 sq ft22
10x10100285 sq ft23
10x12120317 sq ft23
12x12144349 sq ft23
12x14168366 sq ft34
12x16192398 sq ft34
14x14196398 sq ft34
14x16224430 sq ft34
15x20300510 sq ft35
16x16256462 sq ft35
16x20320526 sq ft45
20x20400590 sq ft46

Different ceiling height, windows or number of coats? Use the paint calculator. Landscaping too? See mulch by area and concrete by slab size.