Determine exactly how much paint you need for your project
📦 0 cans (1 gallon each) needed
💡 We recommend buying an extra 10% for touch-ups
This paint calculator estimates the amount of paint you'll need based on your room dimensions. Standard paint coverage is approximately 350 sq ft per gallon on smooth, previously painted walls.
Interior Walls: ~350 sq ft/gallon
Exterior Walls: ~300 sq ft/gallon
Ceiling: ~350 sq ft/gallon
Door: 21 sq ft (3' × 7')
Window: 15 sq ft (3' × 5')
• Always prime before painting over dark colors
• New drywall absorbs more paint - budget extra
• Eggshell and flat finishes hide wall imperfections
• Semi-gloss is easier to clean, great for trim