Epoxy floor calculator
Quick answer: For a 50 m² epoxy floor (primer, two epoxy coats and two topcoats) you need about 16 kg of primer, 28 kg of epoxy and 10 kg of topcoat – 60 kg to buy in total.
Primer, epoxy paint, quartz, chips and topcoat for the chosen system and area, with pack sizes
How the calculation works
Enter the area and choose one of the 7 epoxy systems. Depending on the system, the calculator asks for the primer rate, the epoxy rate per coat, the number of coats, the self-levelling thickness, decorative chips and the topcoat rate. The result is the calculated quantities in kg and the packs to buy.
Formula and assumptions
Primer = area × primer rate (0.25–0.4 kg/m²). Epoxy = area × rate per coat (0.25–0.3 kg/m²) × number of coats. Topcoat = area × rate per coat (0.07–0.12 kg/m²) × number of coats. Quartz broadcast 2 kg/m²; quartz in the primer or epoxy at a 1:1 ratio; self-levelling epoxy 0.85 kg/m² per mm. Packs: primer 30 and 10 kg, epoxy 30 and 16 kg, topcoat 5 and 1 kg – the combination with the lowest total weight that covers the need is chosen.
Worked example
System 3 (primer + epoxy + topcoat), 50 m², primer 325 g/m², epoxy 275 g/m² in 2 coats, topcoat 95 g/m² in 2 coats: primer 16.25 kg → 2 × 10 kg; epoxy 27.5 kg → 1 × 30 kg; topcoat 9.5 kg → 2 × 5 kg. Total to buy: 60 kg.
More worked examples
- Self-levelling epoxy 2 mm over 30 m²: 0.85 × 2 × 30 = 51 kg.
- Area 20 m²: primer 0.3 kg/m² → 6 kg; epoxy 0.28 kg/m² × 2 layers → 11.2 kg; varnish 0.1 kg/m² × 2 layers → 4 kg; quartz sprinkle 2 × 20 = 40 kg.
Self-levelling epoxy by thickness (0.85 kg/m² per mm)
| Thickness (mm) | kg per m² | kg for 20 m² |
|---|---|---|
| 1 | 0.85 | 17 |
| 2 | 1.7 | 34 |
| 3 | 2.55 | 51 |
| 4 | 3.4 | 68 |
| 5 | 4.25 | 85 |
What affects real consumption
- The system decides which materials are calculated (primer, quartz, topcoat, self-levelling layer).
- The rate per coat and the number of coats directly multiply the epoxy and topcoat quantities.
- The substrate, the application method and decorative chips change the real consumption.
Common mistakes
- Forgetting that the number of layers multiplies the epoxy and varnish consumption.
- Leaving out the quartz sprinkle (2 kg/m²) or the 1:1 quartz in the primer or epoxy.
- Entering a consumption outside the product's range instead of the data sheet values.
Frequently asked questions
Why is the quantity to buy larger than the calculated one?
Primer, epoxy and topcoat are sold in fixed packs, so the need is rounded to the pack combination that covers it. The difference is the surplus left in the pack.
What is full flake?
A full broadcast of decorative chips at 1.1 kg/m². The calculator then works out the topcoat in two layers, 5 kg per 15 m² and 5 kg per 30 m², instead of the usual topcoat rate.
How much self-levelling epoxy for a 3 mm layer?
0.85 kg/m² for each millimetre, so 3 mm needs 2.55 kg/m², or 51 kg for 20 m².
How much quartz sprinkle is needed?
The calculator uses 2 kg/m² of quartz sprinkle, so 40 kg for 20 m². Quartz mixed 1:1 into the primer or epoxy is counted separately.
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Publisher: Art-Visum d.o.o. · Content reviewed:
Calculations use common consumption rates and manufacturers' technical data sheets; results are estimates. Methodology · Standards · About