🖌️ Paint Coverage
Litres or gallons needed for any wall or canvas
About this calculator
The Paint Coverage calculator tells you how many gallons or liters a painting project needs. Enter the total wall or surface area plus the paint's stated coverage rate (usually around 350 to 400 square feet per gallon) and the number of coats. It divides area by coverage and rounds up so you buy whole cans with a sensible safety margin.
Tip: always budget one extra quart beyond the math — touch-ups, color shifts between batches, and thirsty primer coats consume more paint than the label rate suggests.