Epoxy Resin Calculator - Volume for Tables and Floors

What Is an Epoxy Calculator?

An epoxy calculator estimates how much epoxy resin you need to coat a table, floor, countertop, or art piece. Enter surface dimensions and coating thickness to get volume in gallons, fluid ounces, and liters, plus the epoxy and hardener split for a standard 2:1 mix ratio.

Epoxy Volume Formulas

For a rectangular surface:

$$ V = \text{length} \times \text{width} \times \text{thickness} $$

For a circular surface:

$$ V = \pi \times r^2 \times \text{thickness} $$

Convert cubic inches to US gallons by dividing by 231. For fluid ounces, divide by 1.80469. Epoxy mixes at a 2:1 ratio (two parts resin to one part hardener by volume).

Frequently Asked Questions

How much epoxy for a 4x8 table at 1 inch thick?

Volume = 96 in × 48 in × 1 in = 4,608 in³. That equals about 19.95 gallons of mixed epoxy. Split into roughly 13.3 gallons resin and 6.65 gallons hardener at a 2:1 ratio.

What is the standard epoxy mix ratio?

Most tabletop and floor epoxies mix at 2:1 by volume (two parts resin to one part hardener). Always confirm the ratio on your product label before mixing.

How do I convert cubic inches to gallons?

Divide cubic inches by 231 to get US liquid gallons. For example, 4,608 in³ ÷ 231 = 19.95 gallons.

How thick should an epoxy table coating be?

Bar tops and tables typically use 1/8 to 1/4 inch (0.125 to 0.25 in) for a seal coat, with flood coats up to 1/8 inch each. River tables and deep pours may use thicker pours with specialized deep-pour epoxy.

Should I order extra epoxy?

Yes. Order 10 to 15% extra to account for overflow, uneven surfaces, and mixing waste. Uneven tabletops and edge drips consume more resin than a flat calculation suggests.

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Epoxy Calculator

What Is an Epoxy Calculator?

Epoxy Volume Formulas

Frequently Asked Questions

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