Epoxy Floor Coverage Calculator
How many gallons and kits of epoxy, polyaspartic or polyurea you need, from area, thickness in mils and solids by volume.
CoatCalc: Epoxy Floor Coating
Flake, crack filler, cove base, dew point and pot life, then a PDF quote with your client price in one tap. See what's inside.
Questions
How much epoxy do I need per square foot?
One US gallon spread 1 mil thick covers 1,604 sq ft. Divide by the thickness in mils and multiply by the solids by volume: a 100 % solids epoxy at 10 mils covers about 160 sq ft per gallon, a 50 % solids product at the same dry thickness covers half that.
What does solids by volume mean?
It is the share of the liquid that stays on the floor after the solvent or water evaporates. You will find it on the product's technical data sheet (TDS). Thickness here is the dry film thickness (DFT).
How much waste should I allow?
Installers commonly add 5–15 % for porous concrete, the roller and the bucket. Profiled or very porous slabs take more.
How many kits should I order?
Divide the gallons needed by the kit size and round up. The calculator also tells you when you are just over a kit boundary, so you can decide whether a little less waste or thickness saves one kit.