Epoxy Volume Calculator
Calculate the exact amount of resin and hardener needed for a rectangular mold based on dimensions and mix ratio.
Inputs
in
in
in
Results
Resin Needed (with 10% overage)
21.95 oz
Hardener Needed (with 10% overage)
21.95 oz
Total Mixed Volume43.88 oz
Total (Gallons)0.34 gal
Resin (exact)19.95 oz
Hardener (exact)19.95 oz
Mold Volume72 cu in
How to Use This Calculator
- Enter the mold dimensions: length, width, and depth in inches for rectangular molds.
- Select your resin's mix ratio (1:1, 2:1, or 3:1) from the product label.
- Read the total resin volume needed in ounces with 10% overage, plus the split between resin and hardener parts.
- Use the per-part weights to measure each component separately on a scale before combining.
- Check the gallons output when purchasing resin sold by volume rather than weight.
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