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Paint Quantity & Can Estimator

Calculate exact paintable wall square footage (subtracting windows and doorways), accounting for coat counts and manufacturer square-footage coverage per gallon.

Room Length (ft)

Room Width (ft)

Ceiling / Wall Height (ft)

Doors & Windows Area (sq ft)

Number of Coats

Coverage per Gallon (sq ft)

Arithmetic Formula:((Perimeter × Height) − Doors/Windows) × Coats ÷ Coverage