# Epoxy Resin Calculator

Free epoxy resin calculator in ml, litres, oz, grams, and gallons. Table top, deep pour, river table, and seal coat. Covers rectangular and round projects with waste factor.

## What this calculates

Mixing too little epoxy means a second batch with visible pour lines. Mixing too much wastes $50+ per gallon. This epoxy resin calculator tells you exactly how much resin plus hardener to mix for a table top, river table, tumbler, or flood coat, with results in millilitres, litres, grams, fluid ounces, and US gallons. Works for rectangular and round projects with any pour thickness.

## Inputs

- **Project Type** — options: Table top / Flood coat (1/8" thick), Seal coat (1/16" thick), Deep pour / Casting (custom thickness), River table (custom thickness), Custom thickness (enter below) — Choose your project. Thickness auto-fills for standard types.
- **Shape** — options: Rectangular (length x width), Round (diameter)
- **Length / Diameter** (in) — min 0 — Length for rectangular, diameter for round
- **Width** (in) — min 0 — Ignored for round shapes
- **Pour Thickness** (in) — min 0.01 — Custom pours only. Standard types auto-fill.
- **Waste Factor** (%) — min 0, max 40 — Add 10-15% for mixing loss, drips, and spread over edges
- **Epoxy Price per Gallon** ($) — min 0 — Combined resin + hardener kit price (table top ~$40-80/gal, deep pour ~$90-180/gal)

## Outputs

- **Surface Area** (sq in)
- **Raw Volume** (cu in)
- **Volume (fl oz)** (fl oz) — Includes waste factor
- **Volume (ml)** (ml)
- **Volume (litres)** (L)
- **Volume (US gallons)** (gal)
- **Weight (grams)** (g) — Density ~1.1 g/cm³ for cured epoxy
- **Estimated Cost** — formatted as currency

## Details

## How Much Epoxy Resin Do I Need?

Epoxy volume equals surface area multiplied by pour thickness. For rectangular work (table tops, bar tops, counters): **Volume = Length x Width x Thickness**. For round work (coasters, bottle tops, circular trays): **Volume = pi x (Diameter / 2)^2 x Thickness**.

Every pour has waste: mixing cup residue, drips, run-off at the edges, and the small amount that self-levels past the intended thickness. Add **10-15%** to the raw volume for safety. Deep pour and river tables run closer to 5-10% waste because the geometry is contained.

## Epoxy Resin Calculator in ML, Grams, Litres, OZ, CM

The table below is how the calculator converts between units. One US gallon equals 3,785.41 mL (3.785 litres), 128 fl oz, and 231 cubic inches. Cured epoxy density is about 1.1 g/cm^3, so volume in mL approximately equals weight in grams times 0.91.

| Unit | Conversion |
|---|---|
| Epoxy resin calculator in ml | mL = volume (cm³) |
| Epoxy resin calculator litres | L = mL / 1000 |
| Epoxy resin calculator in grams | g = mL x 1.1 (density of cured epoxy) |
| Epoxy resin calculator in oz | fl oz = mL / 29.574 |
| Epoxy resin calculator cm | dimensions entered in cm convert to in automatically |
| Gallons | 1 gal = 3785.41 mL = 231 cu in |

## Standard Pour Thicknesses

- **Seal coat:** 1/16" (1.6 mm). First thin layer applied to raw wood to seal pores before flood coat. Covers about 24 sq ft per gallon.
- **Table top / flood coat:** 1/8" (3 mm). Standard pour on a finished surface. Covers about 12 sq ft per gallon.
- **Deep pour / casting:** 1-4" (25-100 mm). Requires deep-pour formulation; standard table top epoxy cracks or exotherms above 1/4" per pour. One gallon of deep pour fills about 13 x 13 x 1" in a single lift.
- **River table:** typically 1.5-2" deep in the channel. Calculate only the channel volume, not the entire table surface.

## Table Top Epoxy Resin Calculator Notes

For a **table top epoxy resin calculator** use, most coating epoxies are 1:1 by volume resin to hardener. A 1 gallon kit is 0.5 gallon Part A plus 0.5 gallon Part B. A 2 gallon kit is 1 gallon of each. Never adjust mix ratio to "slow down cure," that is the number-one cause of sticky, never-hardening epoxy.

## Free Epoxy Resin Calculator in ML

This page is a **free epoxy resin calculator in ML** and every other unit you need. No login, no email, no paywall. Dimensions and waste factor live in your browser and reset when you close the tab.

## River Table Example

A 72" x 36" river table with a 10"-wide irregular river channel 2" deep contains approximately 72 x 10 x 2 = 1,440 cubic inches of epoxy. That is 6.2 gallons (23.6 L) before waste, or about 7 gallons ordered. Buy deep pour epoxy, not table top, and pour in lifts no thicker than the manufacturer's maximum (usually 1.5-2").

## Epoxy Resin Volume Calculator Edge Cases

- **Live edge slabs with voids:** measure the largest voids separately and add that volume.
- **Dams / tape walls:** if you pour over the edge, add 10-15% extra for the edge sheet.
- **Raised pour (flood coat that self-levels):** use 1/8" as the final thickness; the calculator already accounts for self-leveling.
- **Tumbler epoxy:** most tumbler coats use 1-2 oz per tumbler, far less than a flat project.

## Frequently Asked Questions

**Q: How much epoxy resin do I need for a 36"x24" table top?**

A: For a 1/8" flood coat on a 36" x 24" table (864 sq in), the raw volume is 108 cubic inches. With 10% waste, that is 119 cubic inches, or about 0.51 gallons (1.95 litres, 1,947 mL). Buy a 1-gallon table top epoxy kit (two 1/2-gallon bottles mixed 1:1) and you will have about 0.5 gallons left for touch-ups or a second smaller project.

**Q: Is there a free epoxy resin calculator in ml?**

A: Yes, this epoxy resin calculator in ml is free, with no login or email required. It also shows the same volume in litres, fluid ounces, grams, cubic inches, and US gallons so you can match whichever unit your resin kit is labelled in. Dimensions stay in your browser and reset when you close the tab.

**Q: How does the epoxy resin volume calculator handle round projects?**

A: For round projects (coasters, clock faces, serving trays), enter the diameter as Length and select Round shape. The calculator uses Area = pi x (diameter / 2)^2 instead of length x width, then multiplies by your pour thickness. A 12" diameter coaster with a 1/8" flood coat is pi x 6 x 6 x 0.125 = 14.1 cubic inches of epoxy, or about 0.06 gallons (231 mL) before waste.

**Q: What is the epoxy resin calculator in grams vs ml?**

A: Cured epoxy has a density of about 1.1 g/cm^3. One mL of epoxy (before curing) weighs roughly 1.1 grams. To convert: grams = millilitres x 1.1. So 1,000 mL of mixed epoxy weighs about 1,100 g. Some kits are sold by weight rather than volume. If yours is, divide the weight in grams by 1.1 to get mL, then match to the calculator.

**Q: Can I use a table top epoxy resin calculator for deep pour casting?**

A: The geometry math is identical, but the epoxy product is different. Table top epoxy has a fast cure and low maximum pour depth (usually 1/4" per layer). Deep pour formulations (sold as 'casting resin' or 'deep pour') cure slowly so heat dissipates and the pour stays clear up to 2-4" thick. If you use this calculator to size a 2" deep river table pour, buy deep-pour epoxy, not table top.

**Q: How much waste should I add to my epoxy calculation?**

A: For flood coats and seal coats on flat work: 10-15%. This covers mixing cup residue, drips, and spread past the edge. For contained deep pours (molds, river channels): 5-10%. If you are new to epoxy or pouring on a slightly unlevel surface, go with 15%. Leftover resin can always be used for coasters or test pieces, but running short mid-pour creates a visible seam.

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Source: https://vastcalc.com/calculators/construction/epoxy-resin
Category: Construction
Last updated: 2026-04-08