Is this calculation free and private?

Yes, 100% of calculations execute locally in your web browser. No inputs or personal data are stored or transmitted.

Paint Coverage & Room Gallons Calculator

Calculate gallons of wall and ceiling paint required for a room minus doors and windows.

100% free
Private in browser
No signup
No watermarks

Room Length (Feet)

Room Width (Feet)

Wall Height (Feet)

Doors (21 sq ft each)

Windows (15 sq ft each)

Number of Paint Coats

Net Wall Surface Area (Sq Ft)

453

Paint Gallons Needed (350 sq ft/gal)

2.6

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About Paint Coverage & Room Gallons Calculator

Calculate gallons of wall and ceiling paint required for a room minus doors and windows.

How to use Paint Coverage & Room Gallons Calculator

Enter your required input values into the fields.
View the automatically calculated results in real time.

Key features

Instant client-side calculation
Real-time updates without page reloads
Private and secure: zero data leaves your browser

Frequently asked questions

Is this calculation free and private?: Yes, 100% of calculations execute locally in your web browser. No inputs or personal data are stored or transmitted.

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