How Much Area Does A Gallon Cover?

Many products quote roughly 350 to 400 square feet per coat, but the product label and surface condition should control the estimate.

Why Is Paint Rounded To Whole Gallons?

The purchase result uses whole gallons so the project is not planned around a fractional container. Store sizes and return policies vary.

Paint Calculator

Estimate multi-coat wall and ceiling paint after standard door and window deductions, coverage, waste and cost.

Project Measurements

Measured quantity and purchasing assumptions stay separate.

Room LengthftRoom WidthftWall HeightftDoorsWindowsCoatsCoverage Per Gallonsq ftWaste Allowance%Price Per Gallon$Include Ceiling

Gallons To Purchase

Paintable Area: 366 sq ft
Area With Coats: 732 sq ft
Calculated Paint: 2.2 gal
Container Plan: 0 five-gallon + 3 one-gallon
Estimated Paint Cost: $128.97

Coverage varies with product, color change, surface texture, porosity and application method. Primer, trim, doors and touch-up stock should be estimated separately.

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What Is the Paint Calculator?

The Paint Calculator estimates wall area from room perimeter and height, optionally adds the ceiling, deducts standard door and window areas, and applies coats, product coverage and waste. It reports exact and purchasing gallons, a simple container plan and estimated paint cost.

How It Works

Enter room dimensions, openings and coats, then use the coverage printed on the selected paint. Include the ceiling only when it receives the same product and enter the current per-gallon price for a material estimate.

When to Use It

Use it for preliminary interior wall and ceiling purchasing. Primer, trim, doors, color changes, porous surfaces, texture and application method should be handled separately.

Frequently Asked Questions

How Much Area Does A Gallon Cover?: Many products quote roughly 350 to 400 square feet per coat, but the product label and surface condition should control the estimate.
Why Is Paint Rounded To Whole Gallons?: The purchase result uses whole gallons so the project is not planned around a fractional container. Store sizes and return policies vary.

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