Epoxy Calculator, Material Estimation for Flooring and Art

Epoxy calculator

Our epoxy calculator allows engineers, contractors, and DIY enthusiasts to calculate the exact volume of resin and hardener required for any project whether it is to apply a heavy-duty industrial floor coating or maybe building a padel court, futsal court or making your own fishpond.

What is epoxy?

Epoxy is a polymer formed by the reaction of two parts: a resin and a hardener (thermosetting polymer). When mixed together, they formed a chemical reaction called curing, transforming from liquid into solid, durable, and chemical-resistant plastic. In engineering world, it is often used for adhesives, coatings, and composite materials due to its high strength and resistance to degradation.

Epoxy calculator formula

This is how to calculate epoxy and the same based formula as the epoxy calculator works

Cylindrical Volume

Volume to Weight Conversion

Case example of calculating epoxy

We have a table which is 200 cm long, 80 cm wide, and we want to coat it with epoxy at a 0.3 cm coating.
How may epoxy do we need?

$\text{Step 1: } 200 \text{ cm} \times 80 \text{ cm} \times 0.3 \text{ cm}$
$\text{Volume: } 4800 \text{ cubic cm (ml)}$
$\text{Result: } 4.8 \text{ Liters}$

So we have to buy 4,8 liters of resin and hardener.

Another example:

A warehouse floor is 10 meters by 5 meters, their boss wants to coat the floor with epoxy at thickness of 2 mm

Step 1 (Convert to cm) : 1000 cm x 500 cm x 0,2 cm
$\text{Volume: } 100,000 \text{ cubic cm}$
$\text{Result: } 100 \text{ Liters of mixture}$

So he and his worker have to buy 100 liters of resin and hardener.

The 10% waste factor

In engineering and professional contracting, we never order exactly the amount shown by the calculator result. Why? Because floors are rarely perfectly level, and mixing containers always retain a small amount of residue.

• Calculation tip: Always add a 5% to 10% buffer to the result from the epoxy calculator.
• Reasoning: It is much cheaper to have half a liter left over than to run out of resin while the floor is mid-cure, which would result in a visible cold joint or seam.

Surface porosity and absorption

Concrete is like a sponge. If we are applying epoxy to a new concrete warehouse floor, the first primer paint coat will partially soak into the substrate.

• Old Concrete: May have cracks or divots that consume more volume.
• Polished Concrete: Requires less material due to its dense surface.
• Wood/Plywood: Highly absorbent; usually requires a seal coat before the main pour.

Mixing ratios, resin vs hardener

While the epoxy calculator gives us the total volume, remember that epoxy is a two part system. Most industrial epoxies use a 2:1 or 1:1 ratio by volume.

Important note: Always check if your specific product requires mixing by volume or by weight. Because the resin always denser than the hardener, 1 liter of resin weighs more than 1 liter of hardener. Mixing by weight using volume numbers is a common mistake that leads to tacky or soft spots that never fully cure.

Do you currently need to calculate your needs of epoxy usage? Try our epoxy calculator above. If you need to draw a custom under reamed pile in autocad, we have our free plugin which you can try in this link. Download it for free