Paint Gallons Calculator
Calculate paint gallons, primer, and supplies needed for your painting project. Estimate costs for walls, ceilings, and trim.
Step 1: Room Dimensions
Each window/door subtracts ~15 sq ft from area
Paint Coverage
Standard paint covers 350-400 sq ft per gallon. Our calculator uses 350 sq ft per gallon with 10% waste factor included.
Step 2: Paint Details
Painting Tips
Primer: 1 gallon per 200-300 sq ft. Supplies: rollers, brushes, trays, tape, drop cloths. Always buy 10-15% extra for touch-ups.
Paint Estimate
Summary
Materials List
Cost Breakdown
Total Estimated Cost
$285.00
4 gallons of paint required
Paint Gallons
4 gallons
Primer Gallons
1 gallon
Total Area
576 sq ft
Coverage
350 sq ft/gal
Complete Materials List
| Material | Quantity | Unit Price | Total Cost | Notes |
|---|
Cost Breakdown by Area
Paint Calculation Formula
Gallons = (Total Area ÷ Coverage per Gallon) × Coats × (1 + Waste%)
Calculate total wall/ceiling area, subtract windows/doors, divide by coverage per gallon, multiply by number of coats, then add waste factor. Primer: 1 gallon per 250 sq ft.
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