Epoxy Calculator
Construction & Home ImprovementCalculate the volume of epoxy resin needed to fill or coat a rectangular or circular surface.
Epoxy Volume Needed
Volume of epoxy needed, in US gallons.
Epoxy Volume Needed (fl oz)
79.8
The same volume expressed in fluid ounces, useful for smaller pours.
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Calculator Stats
Creators
Odeh Ahwal0people find this calculator helpful
Views
Helpful
Saved
Embeds
Construction & Home Improvement calculators
Frequently Asked Questions
How is epoxy volume calculated?
For a rectangular surface, length times width times thickness gives the volume directly. For a circular surface, the standard circle area formula, pi times radius squared, is multiplied by thickness. The result is converted from cubic inches to gallons using 231 cubic inches per gallon.
What thickness should I use for a tabletop pour?
A common single-pour thickness for epoxy tabletops and river tables is about 1/8 inch to 1/4 inch per layer, though this depends heavily on the specific epoxy product's recommended maximum pour depth, since thick pours can overheat and crack if poured too deep at once.
Does this account for mixing loss or a rounded edge?
No, this calculates the raw geometric volume only. Real projects typically need a small extra margin for mixing container residue and any edge rounding or absorption into a porous surface below.
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