sq ft covered
Paint Coverage Calculator
Estimate paint coverage from gallons available, coverage rate, coats, and surface condition.
Painting and finishing estimate note
Painting and finishing calculators on ToolsBing are planning estimates only. Confirm surface condition, porosity, texture, moisture, primer needs, product coverage, number of coats, ventilation, masking, cleanup, manufacturer guidance, and local safety rules before purchasing or applying materials.
Enter painting or finishing inputs
Estimated result
This is an early paint, coating, sheet, roll, tube, can, or cost estimate before field verification.
Confirm measurements, repairs, primer, texture, masking, ventilation, product coverage, coats, dry time, and waste.
Formula and assumptions
Coverage = gallons available × coverage rate ÷ coats, adjusted for condition loss
Use this result as a preliminary finishing estimate. Real projects may require scraping, sanding, patching, caulking, priming, masking, specialty coatings, extra coats, and professional review.
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Check before using this result
Verify the inputs, units, assumptions, and any local rules that apply. For financial, health, engineering, or construction decisions, confirm the result with a qualified professional or an authoritative source.