Epoxy Calculator

Calculate gallons of epoxy floor coating needed from area, mil thickness, number of coats, waste factor, and kit size.

Frequently Asked Questions

How many gallons of epoxy for a 400 sq ft garage at 10 mils?

Gal/coat = 400 x (10 x 0.001 / 12) x 7.481 = 2.49 gal. Two coats with 10% waste = 5.48 gal total. Round up to 6 gallons or 4 kits of 1.5 gal.

What is a mil in epoxy coating?

1 mil = 0.001 inch (one thousandth of an inch). Standard floor epoxy applies at 6-10 mils per coat. 10 mils is about the thickness of a credit card.

How many coats of epoxy does a garage floor need?

Typically 2 coats: a base coat and a topcoat. Some systems use a primer, base coat, and clear topcoat (3 coats) for maximum durability.

How do I calculate coverage per gallon for epoxy?

Coverage = 1,604 x spread rate in mils / 1 gallon (theoretical). At 10 mils: 1,604 / 10 = 160 sq ft/gal theoretical. Expect 130-150 sq ft/gal practical with waste.

Important Disclaimer: Estimates for informational purposes only.

This calculator provides estimates for informational purposes only. Results are based on assumptions and may not reflect actual outcomes. Consult qualified professionals in relevant fields before making important decisions based on these results.