Paint Coverage Calculator — Calculate Your Paint Needs

Paint Coverage Calculator

Calculate how much paint you need for your project. Estimate paint cans, cost, and coverage based on room dimensions, paint type, and number of coats.

Step 1: Room Details

Estimating Room Size

Measure the length, width, and height of your room. For irregular shapes, break the room into rectangular sections and calculate each separately.

Step 2: Paint Details

Paint Coverage Results

Summary
Paint Comparison
Breakdown

Estimated Paint Cost

$71.99
Based on 864 sq ft with 2 coats at 350 sq ft/gallon
Total Area
864 sq ft
Paint Required
4.94 gallons
Cans Needed
5 cans
Price per Can
$30.00

Paint Type Comparison

Paint Type Coverage Cans Required Total Cost

Paint Cost Breakdown

Paint Coverage Formula

Total Paint = (Total Area × Number of Coats) ÷ Coverage per Can

To calculate paint needed: First calculate the total paintable area (walls only, excluding doors/windows), multiply by number of coats, then divide by the coverage per gallon/liter. Round up to the nearest whole can.

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