Paint Calculator

Calculate exactly how much paint you need for any room or project. Get accurate estimates for paint coverage, costs, and materials including primer, brushes, and supplies.

🏠 Room Setup

📏 Room Dimensions

Room Length (feet)

Room Width (feet)

Ceiling Height (feet)

🚪 Doors & Windows

Number of Doors

Number of Windows

Window Size

🎨 Paint Options

Paint Ceiling

Paint Trim/Baseboards

Needs Primer (new/dark colors)

🎨 Paint Properties

Paint Type

Number of Coats

💰 Cost Estimates

Paint Price per Gallon ($)

Primer Price per Gallon ($)

Include Supplies Cost

🎨 Paint Calculation Results

Total Area

square feet

Paint Needed

gallons

Primer Needed

gallons

Total Cost

materials only

📊 Detailed Breakdown

Surface	Area (sq ft)	Paint Needed	Cost

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💡 Professional Painting Tips

📐

Accurate Measurements

Measure each wall separately and subtract door/window areas. Add 10% extra paint for touch-ups and future maintenance.

🎨

Quality Paint Coverage

Higher quality paints typically cover more area per gallon and require fewer coats, often making them more economical.

🖌️

Primer is Essential

Always use primer when painting over dark colors, new drywall, or switching paint types. It ensures better coverage and color accuracy.

⏰

Proper Drying Time

Allow proper drying time between coats (usually 2-4 hours). Rushing this step can result in poor finish and coverage.

🧽

Surface Preparation

Clean walls, fill holes, and sand rough spots before painting. Proper prep work is 80% of achieving professional results.

💰

Budget Planning

Paint typically costs 15-30% of a professional painting job. Factor in brushes, rollers, drop cloths, and other supplies.