Resin Crafts Calculators

Resin crafts have exploded in popularity across the UK, with makers creating everything from coasters and trinket dishes to river tables and jewellery. Working with epoxy resin requires precision — the resin-to-hardener ratio must be exact, or the piece will remain tacky and never fully cure. Our hardener ratio calculator supports both 1:1 and 2:1 mixing systems by volume or weight, matching the products sold by popular UK resin suppliers like Craft Resin, East Coast Resin and Let's Resin. The resin volume calculator then tells you exactly how many millilitres of mixed resin you need for your mould dimensions.

One of the most common frustrations with resin work is bubbles trapped in the cured piece. Our bubble prevention calculator helps you work out optimal mixing speeds and times, plus the ideal ambient temperature for your workspace — most epoxy resins perform best between 20 and 25 degrees Celsius, which can be a challenge in UK homes during winter. For projects with embedded objects like dried flowers, shells or photographs, the mould fill calculator accounts for the volume displaced by inclusions so you mix the right total amount.

Multi-layer resin pours — popular for ocean art, geode designs and 3D effects — require careful timing between layers. Our layer depth calculator helps you plan pour depths and waiting times, since each layer must reach a gel state before the next is added. The curing time calculator factors in resin type, pour depth and room temperature, as thicker pours generate more exothermic heat and cure faster. For colour work, the pigment amount calculator ensures you add the right percentage of mica powder, alcohol ink or resin dye without exceeding the maximum pigment load, which can interfere with curing. The resin cost calculator rounds out your planning by totalling material costs per piece.