How Much Paint for a 10x12 Room

Quick Answer: A 10x12 room with 9ft ceilings needs 2 gallons of paint for 1 coat(s).

Wall Area396 sq ft
Total Coverage Needed396 sq ft
Paint Needed2 gallons
Primer (if needed)1 gallons
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Customize Your Estimate

$135 - $173
Total Estimate
$150
Materials
$0
Labor
4 hrs
Est. Time

Paint Calculation Formula

Here's how we calculated paint needs for your 10x12 room:

  1. 1. Calculate wall area: 2 × (10 + 12) × 9 = 396 sq ft
  2. 2. Multiply by coats: 396 × 1 = 396 sq ft total
  3. 3. Divide by coverage: 396 ÷ 375 = 1.1 gallons
  4. 4. Round up: 2 gallons (always round up)
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Frequently Asked Questions

A 10x12 room with 9ft ceilings needs approximately 2 gallons of paint for 1 coat(s), based on 396 sq ft of wall area.

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