Paint Calculator
Estimate paint needed and cost based on room or area dimensions.
Stop over-buying or running out mid-job. This calculator estimates exactly how much paint you need based on room dimensions, accounting for doors, windows, and the number of coats required.
Professional painters know: one gallon covers 350-400 square feet on smooth surfaces with primer. Textured walls, dark-to-light color changes, and porous surfaces need more paint.
tune Room Dimensions
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format_paint Paint Estimate
Gallons Needed
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$0
Paint Cost
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Paintable Sq Ft
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Est. Hours
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Primer (gal)
Materials Checklist
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2 gallons paint
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1 gallon primer
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Painter's tape (2 rolls)
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Drop cloths
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Roller frame + covers
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Angled brush (2")
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Paint tray + liners
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Extension pole
Paint Coverage Factors
- Surface texture: Smooth drywall: 400 sq ft/gal, textured: 300 sq ft/gal
- Color change: Going dark to light? Add 20% more paint
- Quality: Premium paints cover better - cheap paint needs more coats
- Application: Spraying uses 20-30% more than rolling
Professional Painting Rates (2024)
| Service | Cost Range |
|---|---|
| Interior walls | $2-6 per sq ft (labor + materials) |
| Exterior | $3-7 per sq ft |
| Trim and doors | $40-100 per door, $3-6 per linear ft trim |
| Cabinets | $100-500 per cabinet (prep-intensive) |