Paint & Finish calculators
Coverage, coats, gallons, quarts, primer, stain, openings, and material cost.
Paint Calculator
Paint Calculator estimates paint gallons and quarts for general room walls with doors and windows.
Open calculator ↗PaintInterior Paint Calculator
Interior Paint Calculator estimates interior wall paint for bedrooms, living rooms, offices, and finished spaces.
Open calculator ↗PaintExterior Paint Calculator
Exterior Paint Calculator estimates exterior coating gallons for one façade or rectangular exterior wall surface.
Open calculator ↗PaintPrimer Calculator
Primer Calculator estimates primer gallons for sealing new, repaired, porous, stained, or changing-color surfaces.
Open calculator ↗PaintCeiling Paint Calculator
Ceiling Paint Calculator estimates ceiling paint gallons for flat rectangular ceilings.
Open calculator ↗PaintTrim Paint Calculator
Trim Paint Calculator estimates trim and molding paint for baseboard, casing, fascia, and linear trim surfaces.
Open calculator ↗PaintFence Paint Calculator
Fence Paint Calculator estimates fence paint or solid stain for one- or two-sided fence coating.
Open calculator ↗PaintDeck Stain Calculator
Deck Stain Calculator estimates deck stain gallons for decking surface, stairs, rails, and exterior wood.
Open calculator ↗PaintHouse Paint Calculator
House Paint Calculator estimates house exterior paint gallons for preliminary whole-elevation coating estimates.
Open calculator ↗Paint guides
Use these Paint guides to understand measurements, assumptions, material specifications, and ordering decisions before applying the related calculators.
Deck Stain Coverage and Coats
Estimate deck stain for boards, stairs, fascia, and rails using developed area, coat count, product coverage, and wood condition.
Read guide →Paint & FinishFence Paint Coverage and Coats
Estimate fence coating from run length, height, painted sides, developed board and rail area, coat count, and product coverage.
Read guide →Paint & FinishTrim Paint from Linear Feet and Surface Area
Convert baseboard, casing, fascia, and molding linear feet into developed paint area, then calculate coating quantity by coats and coverage.
Read guide →Paint & FinishCeiling Paint Gallons and Coverage
Calculate ceiling paint from plan area, coat count, product coverage, texture, and whole-container rounding for each ceiling zone.
Read guide →Paint & FinishExterior House Paint Area and Gallons
Estimate exterior paint from elevation areas, gables, openings, coats, substrate-specific coverage, and separate trim or accent coatings.
Read guide →Paint & FinishInterior Paint Gallons for Walls and Rooms
Estimate interior wall paint from room perimeter, wall height, openings, coat count, and the selected product's stated coverage.
Read guide →