Get an accurate estimate for your next paint job. This tool helps you determine how much car paint to buy, saving you time and reducing waste.
Always consult with a professional before making your purchase. This tool is designed to simply give you a rough estimate.
How It Works & FAQ
How is paint usage calculated?
This calculator uses a standard industry formula:
(Surface Area × Number of Coats) ÷ Coverage Rate × (1 + Waste Rate)
This provides a reliable estimate of how much paint you’ll need for your project.
What is “Paint Coverage”?
Paint coverage refers to how much surface area a specific amount of paint can cover in a single coat.
- In the US, this is typically measured in square feet per gallon (sq ft/gal)
- In metric systems, it’s square meters per liter (m²/L)
You can find this information on the paint can or in the product’s Technical Data Sheet (TDS). Coverage varies depending on the type of paint (primer, basecoat, clearcoat).
What is “Waste / Loss Rate”?
Not all paint sprayed reaches the surface.
Some material is lost due to:
- Overspray
- Application technique
- Equipment setup
A standard estimate is 10–30%, depending on experience and conditions. You can adjust this value to better match your workflow.