Paint Calculators
Paint coverage is a published range, not a fixed product spec, and how far a gallon goes depends on what you're painting — an interior wall, exterior siding, and a ceiling all trend differently within the same range. Pick the calculator that matches your surface for coverage guidance specific to it.
- Paint calculatorGallons or quarts by room area — coats and primer included
- Exterior Paint calculatorGallons or quarts for house exteriors — same math, exterior-specific guidance
- Ceiling Paint calculatorGallons or quarts by length × width — no height, no openings