Enter up to three kits. Size is the combined resin + hardener volume (a "1 gallon kit" is usually ½ gal A + ½ gal B = 128 fl oz).
Price per fl oz = price ÷ combined size. Per gallon = that × 128. For your project the calculator buys whole kits (rounding up), because a cheaper-per-ounce gallon isn't a saving if you only need 20 oz and the rest goes off on the shelf. Opened epoxy usually keeps 6–12 months; hardener yellows and resin can crystallize as it ages.
| Type | Typical $/fl oz |
|---|---|
| Tabletop / coating epoxy, gallon kit | $0.60–$1.00 |
| Art resin, small kits | $1.00–$2.00 |
| Deep-pour epoxy, 2–3 gal kits | $0.70–$1.20 |
| UV resin | $2.00–$5.00 |
Not sure how much you need? Use the resin calculator or kit size calculator, then price the whole piece with the project cost calculator.
Gallon tabletop kits often work out around $0.60–$1.00 per fl oz of mixed epoxy; small art-resin kits are often $1–$2 per fl oz.
Per ounce, usually yes. For your project, only if you will use it before it ages; compare the total cost of whole kits you would actually buy.
Most listings give the combined volume. A 1:1 gallon kit is typically 64 oz resin + 64 oz hardener. 2:1 and 3:1 kits often list each bottle separately, so add them.
More tools: resin calculator · mix ratio by weight · cure time · mold volume · tabletop coating · pouring too thick
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