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Paint Calculator

Gallons of paint for a room's walls, minus doors and windows, per number of coats.

ft
ft
ft
Coats
sq ft
Paint needed
1.8 gal
2 coats at 350 sq ft per gallon
Wall area416 sq ft
Doors & windows−100 sq ft
Paintable area316 sq ft
Cans of 1 gallon2
Pails of 5 gallons1

Standard allowances: a door ≈ 70 sq ft, a window ≈ 15 sq ft.

About the Paint Calculator

Gallons of paint for a room's walls, minus doors and windows, per number of coats.

It runs entirely in your browser — nothing you type is sent to a server — and the result updates as you edit the inputs. Estimates are for educational and informational purposes only; see ourdisclaimer.

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