Scenario Planning & Logistics

Custom Epoxy Resin Pour Calculator (River Tables, Irregular Shapes)

Calculate the exact volume of epoxy resin needed for deep pours, river tables, and complex molds to avoid costly material waste.

Resin Required (Gallons)
3.74
Estimated Cost$299
Resin Required (Liters)14.16 L
Total Volume (Cubic Inches)864 in³

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The Cost of Custom Epoxy Pours

Epoxy resin is an incredibly expensive material, and miscalculating the volume needed for a river table or custom craft project can be a catastrophic and costly mistake. If you mix too little resin, the pour will fail to fill the mold; if you mix too much, you are literally throwing away expensive chemicals that will harden in the bucket.

Calculating Resin Volume

Because molds are rarely perfect squares, estimating volume requires converting dimensions into cubic inches. This tool calculates the exact total volume of your mold (Length × Width × Depth) and converts those cubic inches directly into the gallons or liters of mixed epoxy you will need to purchase.

It also calculates the estimated total material cost of the pour, ensuring your custom woodworking project remains profitable.

The Mathematical Formula

To calculate this scenario accurately, the following formula is applied:

Vgal=L×W×D231\begin{aligned} V_{gal} = \frac{L \times W \times D}{231} \end{aligned}

Where:
VgalV_{gal}=
Volume in US Gallons
L, W, D=
Length, Width, and Depth (inches)
231=
Cubic Inches per Gallon

Frequently Asked Questions

Multiply the average length in inches by the average width in inches, and then multiply that by the total depth of the pour.

One US Liquid Gallon is exactly 231 cubic inches. Therefore, if your mold requires 462 cubic inches of space, you will need exactly 2 gallons of mixed epoxy.