All epoxy and resin calculators
Every calculator on the site, grouped by project. Each one works in US or metric units, shows its working, and rounds up to whole kits.
Tables & furniture
- River Table Epoxy CalculatorFilling the gap between two wood slabs with thick, clear resin.
- Tabletop Epoxy CalculatorPutting a glossy clear coat on a table, desk or old tabletop.
- Bar Top Epoxy CalculatorBar tops with coated edges, plus the extra fill pour for coins, caps or photos — with layers and kits.
- Epoxy Void, Crack & Knot Fill CalculatorHow much epoxy to fill cracks, knot holes and voids in a slab — with soak-in, the smallest batch you can mix, and which resin suits the depth.
Countertops & floors
- Countertop Epoxy CalculatorEpoxy for countertop coatings — top, exposed edges and backsplash, with a base coat and flood coats.
- Garage Floor Epoxy CalculatorCoating a concrete garage floor with a boxed DIY kit.
- Epoxy Floor Coating CalculatorGallons of floor epoxy by film thickness (wet or dry mils) or the data sheet’s coverage rate — with primer, topcoat and batch sections.
- Epoxy Floor Job Bid CalculatorFor installers: primer, base and topcoat kits, flake boxes and labor hours per step — then your prices and markup for a bid and $/sq ft.
Resin art & crafts
- Resin Art CalculatorCoating a painting, canvas or art panel.
- Coaster Resin CalculatorResin for a set of round, square or hexagon coasters, in ounces, ml or grams per coaster.
- Tumbler Epoxy CalculatorEpoxy per coat for tumblers on a cup turner — and how many tumblers a kit will do.
- Resin Mold CalculatorResin for molds, castings and coaster sets — box, cylinder, sphere, dome, or any shape by the water method.
- Silicone Mold CalculatorHow much silicone rubber to pour a block mold around your model — by weight, with Part A and B.
- Epoxy Pigment CalculatorHow many grams of mica powder, paste or tint to add to a batch of resin — and whether you are over the maker’s limit.
Mixing, volume & cost
- Epoxy Resin CalculatorSomething else — any rectangle or circle, any thickness.
- Epoxy Mix Ratio CalculatorSplit any batch into Part A and Part B — by volume or by weight — or work out the other part when one is already poured.
- Epoxy Cure Time & Temperature CalculatorAdjust the label’s working, recoat and cure times for a cold garage or a hot shop — as clock times, with a dew-point check.
- Epoxy Kit & Cost CalculatorHow many kits to buy for a given volume, what it costs, and which of up to three kit sizes works out cheaper.
- Epoxy Volume & Weight ConverterGallons to pounds, liters to kilograms, and cubic inches to gallons for mixed epoxy.
- Fiberglass Epoxy CalculatorEpoxy to wet out fiberglass cloth and fill the weave — for boat repairs, laminating and glassing wood.