Paint Calculator
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Surface type
Interior (smooth drywall)
Interior (textured)
Exterior (wood / vinyl / fiber cement siding)
Exterior (brick, CMU, stucco)
Room / wall length
ft
Room / wall width
ft
Wall height
ft
Number of doors
Number of windows
Number of coats
1 coat
2 coats (recommended)
3 coats
Painting the ceiling?
Yes
Need primer? (new surface, stain, or dark → light)
Yes
You need
Paint needed
3 gallons
333.00 sq ft × 2 coats, 350 sq ft/gal, 10% waste
Paintable area
333.00 sq ft
walls only, openings subtracted
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