Paint Calculator
Calculate how much paint or stain you need for any surface
Surface Dimensions
Results
Total Area
—
Gallons Needed
—
Estimated Cost
—
Painting Tips
- Always buy 10-15% more paint than calculated to account for waste, touch-ups, and uneven surfaces.
- Two coats are recommended for most surfaces to ensure even coverage and durability.
- Primer may be needed for new drywall, bare wood, or when making dramatic color changes. This is separate from your topcoat calculation.
- Higher-quality paints often provide better coverage and may reduce the number of coats needed.
- Temperature and humidity affect drying time. Paint in moderate conditions (50-85°F) for best results.
- Subtract the area of windows and doors for a more accurate wall paint estimate.
Related Calculators
- Deck Stain Calculator — Calculate stain for your deck project
- Fence Paint Calculator — Estimate paint for fence staining or painting
- Wall Paint Calculator — Figure out how much paint for interior walls
- Ceiling Paint Calculator — Calculate ceiling paint needs
- Exterior Siding Paint Calculator — Estimate paint for exterior siding
- Trim Paint Calculator — Calculate paint for baseboards, door frames, and trim