Epoxy Resin Calculator: How Much Epoxy Do I Need?

Epoxy resin calculator for tabletops, river tables, and molds. Converts inches to ounces (divide by 1.805), splits resin and hardener, adds 10% waste.

Epoxy Resin Calculator

Project Type

Surface Length (in)

Surface Width (in)

Pour Depth (in)

Mix Ratio (resin:hardener)

Waste Allowance (%)

Epoxy Price ($/gal kit)

Total Mixed Epoxy

54.8 fl oz

In Milliliters

1622 ml

Resin Part

27.4 oz

Hardener Part

27.4 oz

Estimated Cost

$38.56

ℹ️ 1 US fluid ounce = 1.805 cubic inches. Mix ratios here are by VOLUME — if you measure by weight, check your brand’s weight ratio, because hardener is less dense than resin.