ResinCalc.app
Free epoxy resin calculator for makers
ResinCalc.app launched on June 20, 2026 with 3 votes, #6,658 of 22,647 launches that month and more than 50% of that year's launches.
What it does
ResinCalc is a free, no-sign-up epoxy resin calculator for makers, woodworkers and crafters. Enter your piece's shape, measurements and depth and get the exact amount of resin you need, the A:B mixing ratio by weight, curing times, and an automatic layer-by-layer pour plan for deep pours. It works for river tables, jewelry, coasters, fluid art, molds, floors and countertops, in metric or imperial units. Built so you never waste a gram or run short mid-pour.
Calculate exactly how much epoxy resin you need for river tables, jewelry, or any project. Free, accurate, no sign-up. Built for makers.
Enter your piece measurements and get the exact resin amount, A:B breakdown, curing times, and layer pour plan. Respects the exact ratio of each product. No estimates, no unnecessary waste. If your piece exceeds 2 cm depth, the calculator automatically splits into safe layers. Countdown of working time so it doesn't cure before you finish. Units and purchase recommendations adapted to your country automatically. Everything you need to get your project right the first time. Multiply your piece area (length × width) by depth to get volume in cm³. Multiply that volume by resin density (typically 1.10 g/ml) to get grams. Add 10% waste margin. Our calculator does this automatically and respects…from resincalc.app
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