Paint Calculator – How Much Paint Do You Need?
Calculate how many gallons of paint you need to cover walls and ceilings.
Result
Paint Calculator Formula
Gallons = (Wall Area × Coats) / Coverage per Gallon
Standard paint covers ~350 sq ft per gallon.
Paint Calculator Example Calculation
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)
Frequently Asked Questions about Paint Calculator
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