ResinCalc.app's answer

Makers, woodworkers (hobbyist and professional) and crafters working with epoxy:

• River tables and deep pours
• Jewelry, coasters and fluid art
• Molds, floors and countertops

Anyone who needs an exact resin amount and doesn't want to guess or waste expensive resin.

ResinCalc.app's answer

• Astro — static site generation
• TypeScript + vanilla JavaScript for the calculator
• Plain CSS, no front-end framework
• Deployed on Vercel

ResinCalc.app's answer

• Not applicable — ResinCalc is a free public tool with no customer accounts.

ResinCalc.app's answer

Most resin calculators are a single field buried inside a manufacturer's store, and they only output one total weight. ResinCalc is free, independent and ad-free, and it gives you the full picture:

• Exact amount of resin + hardener, with a waste margin
• A:B ratio by weight, split into each part
• Curing & pot-life times so you only mix what you can pour in time
• Automatic layer plan for deep pours — the step where people run short or trap heat

Plus it's bilingual and works on mobile without registration.

ResinCalc.app's answer

It's the only free epoxy resin calculator that turns a deep pour into a safe, layer-by-layer plan — with the exact grams and timing for each layer — instead of just giving you a single total.

It also handles:

• Any shape — rectangle, circle, oval or irregular
• Metric or imperial units (mm/cm/m, in/ft)
• No sign-up, no ads, bilingual (English / Spanish)

ResinCalc.app's answer

I kept seeing makers either run short halfway through a pour or waste expensive resin by over-mixing — and the existing calculators only gave a rough total, with nothing for deep pours that have to be done in layers.

I built ResinCalc to fix that: the exact amount, the A:B split and an automatic layer plan — free, no sign-up, in both English and Spanish.