Epoxy Calculator
Calculate how much epoxy resin is needed for a countertop, floor, or river table project.
Formula
Volume (cu ft) = L × W × D(ft); Convert to gallons × 7.4805; 128 oz/gal
- Add 10–15% overage for sealing the substrate and waves.
- Maximum single pour depth depends on product: deep pour max varies by manufacturer.
6×2.5 ft surface, 1/4 inch pour
Inputs
- Length: 6 ft
- Width: 2.5 ft
- Pour Thickness: 0.25 in
6×2.5×(0.25/12) = 0.3125 cu ft × 7.48 = 2.34 gal = 300 oz.
Frequently asked questions
Do I need a flood coat and a pour?
Yes — most countertop projects need a seal coat first, then a flood coat. Both are included in your total estimate.