How much epoxy per square foot?

Paint: about 0.05 lb per sq ft per coat; self-leveler about 0.33 lb per sq ft per mm.

How thick for a garage?

Two coats for light use; 2–3 mm self-leveler for heavy use.

Walkable in 24 h; cars after 5–7 days.

Epoxy or polyurethane?

Epoxy is harder; polyurethane handles UV and flex better.

Can I epoxy over tile?

Yes, with prep and the right primer.

How long does an epoxy floor last?

5–15 years depending on thickness and traffic.

Epoxy floor calculator

System (two-coat epoxy paint or self-leveling), area, thickness and kit size: you get pounds or kilos of resin, kits and primer.

Purchase quantity

48.502 lb

Net measurement: 44.092 lb · Waste 10 %

Epoxy kits3 unit
Resin needed48.502 lb
Epoxy primer (0.3 kg/m²)26.455 lb

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How it's calculated (visible formula)

paint: kg = area × 0.25 kg/m² × 2 coats; self-leveling: kg = area × thickness (mm) × 1.6 kg/m²·mm

Net geometric measurement, no waste.
Adjustable waste % for cuts and breakage.
Purchase rounded up to sellable units (boxes, bags, buckets, boards).

See methodology and formula versions

How to calculate it, step by step

Measure the slab area.
Choose the system: epoxy paint or self-leveling.
Work out resin by thickness or coats.
Add primer and waste.
Round up to kits.

Worked example: 430 sq ft garage, two-coat epoxy, 22 lb kits

40 m² × 0.25 × 2 = 20 kg
+10% = 22 kg (48 lb)

→ 3 kits and 12 kg of primer.

Common mistakes

Coating damp concrete.
Not profiling the slab (grind or shot-blast).
Mixing more than you can spread in the pot life.

Pro tips

Grind or shot-blast the slab to open the pores.
Test slab moisture — it must be low.
Mix with a slow drill and respect pot life.
Broadcast anti-slip aggregate in wet areas or ramps.

From calculation to quote

Add labor, overhead and your margin, and generate the professional PDF.

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FAQs

How much epoxy per square foot?: Paint: about 0.05 lb per sq ft per coat; self-leveler about 0.33 lb per sq ft per mm.
How thick for a garage?: Two coats for light use; 2–3 mm self-leveler for heavy use.
Cure time?: Walkable in 24 h; cars after 5–7 days.
Epoxy or polyurethane?: Epoxy is harder; polyurethane handles UV and flex better.
Can I epoxy over tile?: Yes, with prep and the right primer.
How long does an epoxy floor last?: 5–15 years depending on thickness and traffic.

Sources and standards

Maintained by Srikanta M · Formula v1.0.0 · Verified 2026-09-10 · Updated 2026-09-10 · Limits: quantity estimation, not structural design or site supervision.