How Much Paint for a 10x12 Room

Quick Answer: A 10x12 room with 10ft ceilings needs 4 gallons of paint for 3 coat(s).

Wall Area440 sq ft
Total Coverage Needed1320 sq ft
Paint Needed4 gallons
Primer (if needed)2 gallons
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Customize Your Estimate

$269 - $344
Total Estimate
$299
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) × 10 = 440 sq ft
  2. 2. Multiply by coats: 440 × 3 = 1320 sq ft total
  3. 3. Divide by coverage: 1320 ÷ 375 = 3.5 gallons
  4. 4. Round up: 4 gallons (always round up)
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Frequently Asked Questions

A 10x12 room with 10ft ceilings needs approximately 4 gallons of paint for 3 coat(s), based on 440 sq ft of wall area.

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