Paint Calculator
Estimate gallons of paint needed for room walls and coats.
Paint Calculator
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Formula & How It Works
Gallons = Wall Area × Coats ÷ Coverage per GallonMost paints cover about 350 square feet per gallon per coat, depending on surface and color.
Use this calculator as a fast planning tool. Always confirm important financial, medical, construction, or recipe measurements with a qualified source before making final decisions.