EpoxyCalculators.com
Calculate epoxy resin in gallons, fl oz & Part A/B grams.
DesignFree#calculator#woodworking#diy
Launching today, Oct 14, 2026 · currently #5
What is EpoxyCalculators.com?
EpoxyCalculators.com is a free, instant engineering calculator built for US woodworkers, river table makers, bar top builders, and garage floor DIYers. Enter dimensions in inches and it returns the exact pour in US gallons, quarts, fluid ounces, and milliliters, plus Part A and Part B weights in grams for a digital scale.
Rectangular and round molds are covered, along with a 5-point irregular river channel and an optional 10% live-edge bevel for bark cavities under the slabs. Countertop mode splits a thin seal coat (about 3.5 oz per sq ft) from the flood coat so you do not mix them as one pour. Mix ratios are 1:1, 2:1, and 3:1 by volume, using specific gravity of about 1.15 for resin and about 0.97 for hardener, with a note that resin is heavier so a 1:1 volume mix is not 1:1 by grams. Edge drip and cup waste can be set from 0% to 15%.
Garage mode takes floor area, base-coat mils (8, 12, 16, or 20), vinyl flake broadcast (light, medium, or full rejection), a 100% solids kit price per gallon, and a local contractor rate so you can compare a DIY budget with hiring it out. One-click presets include a 60 by 30 inch dining flood, a 72 inch walnut river table, an 84 by 42 inch kitchen island, a 36 inch round cafe table, and 1-car, 2-car, and 3-car garages. A live top-down blueprint and a copyable mix sheet are included. No signup, no account, and nothing is stored on a server. Always check the ratio and specific gravity on your own resin bottle before you pour.
EpoxyCalculators.com features
- Exact pour volume in US gallons, fluid ounces, and milliliters
- Part A/B gram weights for 1:1, 2:1, and 3:1 mix ratios
- 5-point irregular river channel with optional live-edge bevel
- Separate seal coat and flood coat for countertops and bar tops
- Garage floor mils, vinyl flake, and DIY vs contractor budget
Who uses EpoxyCalculators.com and for what
- River-table makers sizing a deep pour between live-edge slabs
- Bar-top and countertop builders planning a seal coat plus flood coat
- Garage-floor DIYers estimating epoxy, flake, and kit cost
EpoxyCalculators.com FAQ
Is EpoxyCalculators.com free?
Yes. It is free, instant, and needs no signup or account.
Does it calculate Part A and Part B in grams?
Yes. It splits the pour into Part A and Part B gram weights for 1:1, 2:1, and 3:1 mixes, using specific gravity of about 1.15 for resin and about 0.97 for hardener. Always check your bottle label.
Can it handle an irregular river table channel?
Yes. Enter five width measurements along the gap, and optionally add 10% for live-edge bevel under the slabs.
Does it work in US gallons and fluid ounces?
Yes. Results include US gallons, quarts, fluid ounces, milliliters, and cubic inches.
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