Short answer: one US gallon (231 in³) covers about 12.8 sq ft at ⅛", 25.7 sq ft at 1/16", 6.4 sq ft at ¼" and 1.6 sq ft at 1". For thin floor coatings measured in mils, see the garage floor calculator.
| Thickness | sq ft per gallon |
|---|---|
| 1/32" | 51.3 |
| 1/16" | 25.7 |
| 1/8" | 12.8 |
| 1/4" | 6.4 |
| 1/2" | 3.2 |
| 1" | 1.6 |
About 12.8 sq ft at 1/8 in, the usual self-leveling thickness for tabletop epoxy.
Usually no: most "1 gallon kits" are ½ gal resin + ½ gal hardener = 1 gallon mixed. Check the label.
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