calcs.homes
calcs.homes
Enter your surface area, pour thickness, and mix ratio to find exactly how much resin and hardener to mix for a tabletop, river table, or coating.
Estimate only — pour in thin layers (under 1/4 in / 6 mm at a time) to avoid overheating and cracking.
Volume = surface area × pour thickness. We convert that to fluid ounces (or milliliters), then split it by your resin-to-hardener ratio — 1:1 by volume is common for tabletop and casting epoxy, though some formulations use 2:1 or 3:1. Always check your specific product's mix ratio, since using the wrong ratio can leave epoxy permanently soft or tacky.
Multiply the tabletop's area by your target coat thickness (1/8 in is typical for a single coat) — enter your dimensions above for an exact resin and hardener split.
Most tabletop epoxies are only rated for thin pours (around 1/8-1/4 in per layer) — thicker single pours generate heat as they cure and can crack, yellow, or never fully harden. Deep pours (river tables) need a specific deep-pour formulation instead.