Paint Coverage Calculator

Room Details

Room Length (ft)

Room Width (ft)

Wall Height (ft)

Number of Doors

Number of Windows

Number of Coats

Coverage Rate (sq ft/gal)

Paint Type

Results

Paintable Area (sq ft)

Gallons Needed

1-Gal Cans to Buy

Assumes standard door (21 sq ft) and window (15 sq ft) deductions. Rounds up to whole cans, including a small buffer for touch-ups. Actual coverage varies by wall texture, paint brand, and application method — check your paint can label for exact specs.