Construction Calculators

Paint Calculator – How Much Paint Do You Need?

Calculate how many gallons of paint you need to cover walls and ceilings.

Total Wall Area (sq ft)

Number of Coats

Paint Coverage (sq ft/gallon)

Total Area to Cover0 sq ft

Gallons Needed0.0

Quarts Needed0

Paint Calculator Formula

Gallons = (Wall Area × Coats) / Coverage per Gallon

Standard paint covers ~350 sq ft per gallon.

Wall area: 800 sq ft, 2 coats, 350 sqft/gal

Total = 800 × 2 = 1,600 sq ft

Gallons = 1,600 / 350 = 4.6 gallons (buy 5)

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