Mulch & Mortar

How much paint do I need for a 10×10 room?

A 10 × 10 ft room with 8 ft ceilings has about 269 square feet of wall after a door and two windows. Two coats takes 1.4 gallons of wall paint, so buy 2 gallons. The 100 square foot ceiling needs 1 gallon for two coats. One coat of primer on bare or patched drywall is another 1 gallon.

Paint for a 10×10 room by number of coats

CoatsWall paint, exactWall paint to buyCeiling paint
10.72 gal1 gal1 gal
21.43 gal2 gal1 gal
32.15 gal3 gal1 gal

Based on 8 ft ceilings, one door, two windows, and 375 square feet per gallon. Primer, if the walls need it, is 1 gallon for one coat.

Change the numbers

The calculator below is preset for this size. Adjust anything and the results update instantly.

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Each door is counted as 21 sq ft.
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Each window is counted as 15 sq ft.
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Most cans say 350 to 400 sq ft per gallon. Rough or bare drywall covers less.
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Results update as you type. Nothing is sent anywhere.

Gallons, quarts, and what a 10×10 room costs to paint

Wall paint costs $30 to $60 a gallon, so two coats on this room is $60 to $120, plus $25 to $45 for ceiling paint. Buy the rounded-up amount; the leftover is your touch-up supply for years. A painter charges roughly $2 to $4 per square foot of wall, or $538 to $1,076 for the walls alone. Rollers, a cut-in brush, tape, and a drop cloth add $30 to $50 for a DIY job.

Painting a 10×10 room

Papering instead? The wallpaper calculator uses the same room dimensions.

Common questions

How many gallons of paint for a 10x10 room with 8 foot ceilings?

2 gallons for two coats on the walls (1.4 gallons exact), 1 for one coat, or 3 for three. Add 1 gallon for the ceiling.

Is one gallon enough for a 10x10 room?

Yes for one coat on the walls, but not for two. One gallon covers about 375 square feet, and this room has 269 square feet of wall, so two coats needs 1.4 gallons.

Do I need primer for a 10x10 room?

Only on new drywall, repaired patches, glossy surfaces, or when covering a dark color. One coat takes 1 gallon. On previously painted walls in good shape, a quality paint-and-primer product with two coats is enough.

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