Tabletop maker
Estimate a rectangular seal or flood-coat volume.
Enter measured length, width, average depth, whole pours, and a chosen allowance.
Distinguishes exact geometry from allowance and product limits.
Epoxy Resin Calculator
Calculate epoxy resin volume for rectangular pours, tabletops, round molds, coasters, and river table sections with mix ratio and waste allowance.
Use this result well
- Inputs that matter
- Idealized rectangle/circle dimensions, average depth, whole identical-pour count, user allowance, and the current product’s resin/hardener ratio explicitly stated by volume
- Output to expect
- Per-pour cubic inches, base and allowance volume, total liters/gallons, and resin/hardener fluid-ounce split
- How it works
- Calculate idealized geometry, scale by whole pours, apply the entered allowance, then split total volume by the exact entered volume parts
- Do not use the component split for a product specified by weight; follow its label and SDS and respect maximum depth, batch mass, working time, and temperature.
- Irregular voids, leakage, absorption, exotherm, cure behavior, and safe PPE/ventilation are outside the geometry; uncured resin exposure requires product-specific controls.
Choose your path
Built around the job you need to finish
Calculate idealized pour geometry and an explicit product-label volume-ratio split while keeping irregular voids, cure limits, and exposure controls outside the estimate.
Coaster maker
Scale repeated round molds.
Choose circle, enter diameter/depth and whole repeat count.
Gets a stable scaled volume without hidden package rounding.
Safety-conscious resin user
Avoid applying a volume ratio to a weight-ratio product.
Confirm the label ratio basis before entering resin/hardener volume parts and review CDC/NIOSH limits.
Uses the split only for volume-specified products and follows label/SDS/PPE/ventilation/depth/temperature controls.
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Projects using Epoxy Resin Calculator
This tool is part of these guided projects. Each project provides step-by-step instructions with checklists and all the tools you need in one place.
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Reference & details
How it works
Updated August 2026
How it works
Updated August 2026Volume conversion
Rectangular and round pours are calculated in cubic inches, then converted to US fluid ounces for common resin measuring cups.
fluid ounces = cubic inches x 0.554113Mix ratio split
Total volume is split by the exact decimal parts entered. Use this only when the current product states its ratio by volume; a ratio by weight requires the product's weight instructions.
Geometry and exposure limits
The estimate excludes irregular voids, absorption, leakage, exotherm, working time, cure behavior, and safe batch/depth limits. Follow the current label and SDS plus product-specific PPE and ventilation. CDC/NIOSH context: https://www.cdc.gov/niosh/reproductive-health/prevention/epoxies-resins.html
Updated: August 2026
Example Scenarios
Enter length, width, and shallow pour depth to estimate resin before starting the mix.
Switch to round shape, enter diameter and depth, and add waste for cup residue and overfill.
Enter a whole repeat count for idealized identical cavities, while measuring irregular voids and leakage risk separately.
Common Mistakes to Avoid
Common Mistakes to Avoid
Ignoring irregular voids
Live-edge tables, cracks, and knots rarely match perfect geometry. Measure actual voids and keep extra resin ready.
Pouring too deep for the epoxy system
Follow the manufacturer maximum pour depth and working time to avoid overheating, bubbles, or a soft cure.
FAQ
Calculate the pour volume in cubic inches, convert to fluid ounces, then add a waste allowance. This tool does that conversion and splits the mix ratio.
Not always. Some systems are mixed by volume and others by weight. Follow the product instructions for your epoxy.
There is no universal percentage. Enter an allowance based on measured geometry, cup/tool residue, surface absorption, leakage risk, test history, and the product/workflow you use.
No. Exotherm, working time, ambient conditions, substrate, and chemistry are product-specific. Follow the current label and SDS exactly.
The idealized geometry and unit conversions are reproducible, but irregular voids and real process losses can dominate. Measure the workpiece and validate against product limits before mixing.
About Epoxy Resin Calculator
Estimate idealized rectangular or round pour volume, then apply your own allowance and a mix ratio copied from a product that explicitly states the ratio by volume.