gallons / units
Paint Calculator
Estimate paint gallons from wall area, coverage rate, coats, and waste allowance.
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
Paint estimate = surface measurements, product coverage, coats, waste, and jobsite preparation assumptions
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.
Related painting and finishing calculators
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.