What is epoxy resin volume calculator?
An epoxy resin calculator estimates pour volume and splits the result into resin and hardener based on the product mix ratio. The result is a planning estimate for simple rectangular or round shapes.
How to use this calculator
- Choose the closest shape.
- Enter dimensions and pour depth.
- Select the mix ratio printed on your resin kit.
- Measure parts carefully using the method recommended by the manufacturer.
How is it calculated?
Formula
volume = length x width x depth, or pi x radius squared x depth; split by mix ratio What The Constants Mean
- Fluid ounces per cubic inch (0.554113): Converts simple resin pour volume from cubic inches into US fluid ounces.
- 10% extra (1.1): A small planning buffer for trimming, cup residue, uneven edges, and measurement variation.
A 12 x 8 x 0.25 in rectangular pour needs about 14.63 fl oz before waste, then more with extra allowance.
Common mistakes
Mix ratios are product-specific and may be by volume or weight. Deep pours, porous surfaces, embedded objects, leaks, and uneven molds can change material needs and safety requirements.
FAQ
Is resin mix ratio by weight or volume?
It depends on the product. Follow your resin manufacturer's instructions.
Can I pour any depth?
No. Each resin has maximum pour depth and heat limits.
Why add 10% extra?
Extra covers mixing cup residue, surface leveling, and small measurement errors.
Do I need PPE?
Yes. Use the PPE and ventilation specified by the product SDS and label.