Epoxy Floor Calculator

How much epoxy do I need for a floor?

sq ft
coats
mils
%
%

Order this much of floor epoxy

6gallons

Uses the coating formula 1,604 sq ft per gallon at 1 mil, adjusted for volume solids and thickness, plus 15% for rollers and rough concrete. Use volume solids from the data sheet.

Concrete2 coats × 8 mils dry (enlarged)500 sq ft, 100% solids · 6 gal
Coverage per gallon201 sq ft
Per coat2.5 gal
Exact total5.74 gal

For commercial floors and thick systems, this works from dry film thickness and volume solids instead of kit labels.

How it works

Area × mils ÷ (1,604 × volume solids) per coat, then multiplied by coats and your loss factor. Results round up to half gallons.

Before you order

  • Grind or shot blast concrete to the profile the system requires.
  • Check concrete moisture before coating, since trapped vapor causes blisters.
  • Use a notched squeegee to hold your target thickness.

Common questions

What does 100% solids mean?

All of the liquid cures into film, so a gallon gives 1,604 sq ft at 1 mil. Water or solvent-borne products lose thickness as they dry.

What thickness do I need?

It depends on the system and traffic. Use the coating maker's spec, and enter dry film thickness here.