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Paint Calculator
Interior Latex
350-400 sq ft/gal
Exterior Latex
300-350 sq ft/gal
Primer
300-350 sq ft/gal
Oil-Based
400-450 sq ft/gal
Total Surface Area (sq ft)
Number of Coats
1 Coat
2 Coats
3 Coats
Surface Type
Smooth (Drywall)
Textured
Brick/Masonry
Wood Siding
Metal
Doors & Windows (sq ft)
Wastage %
Quick Room Calculator
Length (ft)
Width (ft)
Height (ft)
Openings (sq ft)
Calculate Room Area
Calculate Paint Requirements
0
Gallons of Paint Needed
0
Quarts
0
Liters
0
Coverage/Gallon
0
Total Coverage
Calculation Breakdown
Total Surface Area:
0 sq ft
Doors & Windows:
0 sq ft
Net Paintable Area:
0 sq ft
Number of Coats:
2
Total Area to Paint:
0 sq ft
Paint Coverage:
350 sq ft/gal
Wastage (
10%
):
0 gal
Total Paint Needed:
0 gal
Cost Estimation
$0
Paint Cost
$0
Primer Cost
$0
Supplies Cost
Total Project Cost:
$0
Painting Tips
Always buy 10-15% extra paint for touch-ups
Use primer on new or dramatically different colored surfaces
High-quality paint often requires fewer coats
Consider the surface texture when estimating coverage
Store leftover paint properly for future touch-ups
Calculate ceiling area separately if painting different colors
Factor in drying time between coats