New: Epoxy Resin Calculator — quick & pro modes for deep pours, flood coats and river tables
Plan your pour in seconds. Our free calculator converts dimensions into total volume, suggested layers, and a clean A/B mix breakdown by volume — then recommends kit sizes that actually cover the job.
- Pick a purpose (flood coat, river table, potting, etc.) — we auto-select the best resin system and safe defaults.
- Enter length × width × depth. Get total litres, layer count (based on safe max per pour) and a precise A:B mix by volume.
- See Suggested kits that cover your requirement — choose the exact match or the next size up.
Quick Calc vs Pro Calc
- Quick Calc — fastest way to size a coating or rectangle. Perfect for tabletops, flood coats and simple castings.
- Pro Calc — adds River (with void/irregularity factor) and Cylinder shapes for more complex geometry.
How to use it (2 steps)
- Choose a project purpose — this sets the resin system (e.g., Deep Pour 3:1 for river tables), a sensible waste %, and a safe max pour per layer.
- Enter your dimensions — switch units (mm/cm/in) anytime. Your volume and mix breakdown update instantly.
Why this works
- Purpose-based defaults reduce guesswork and help you pick the right system for depth, pot life and clarity.
- Layer guidance helps manage exotherm for deep pours and thicker builds.
- Volume-only mixing avoids weight-ratio confusion (resin and hardener densities can differ).
FAQ
Can I work by weight? Our calculator is volume-based. If your product label specifies a weight ratio, follow that label and your TDS.
What if my cavity is irregular? Use the Pro tab’s River shape and adjust the void/irregularity slider (0.80–0.90 suits most live-edge rivers).
Can I save my result? Yes — use Copy summary or Email me my result directly from the calculator.
Heads-up: Estimates only. Always follow your product’s TDS for safe layer thickness, pot life, cure and temperature guidance.