Paint Calculator

Walls • Rooms Coats • Gallons

Estimate gallons from area (sqft). Includes coats, coverage, and waste.

Tool Mode

Tip: Results appear below the button. Changing modes hides results automatically.

Gallons Needed

Area × coats ÷ coverage (with waste).

Area

Paintable area (sq ft) Coats

Coverage

Coverage (sq ft / gallon) Waste (%)

Waste covers touch-ups, roller loss, and uneven surfaces.