The Ultimate Pool Paint Coverage Calculator: How Much Do You Really Need?

Why Guessing Pool Paint Coverage Costs You

Running short mid-job is the worst outcome in pool painting. Epoxy is a two-pack system that shouldn’t be part-mixed, and colour can vary between batches — so a top-up tin bought a week later may not match what’s already on the wall.

Over-ordering costs money. Under-ordering costs you the job. Getting it right the first time matters more here than in almost any other paint project.

Start With the Calculator

Rather than estimating, use our free Pool Paint Calculator. Enter your pool’s shape, dimensions and paint type and it returns the quantity you need. It takes a minute.

Actual Coverage Rates

These are Colormaker’s published figures:

• Luxapool® Epoxy Pool Paint — 20–25m² per 3.5L kit, per coat
• Luxapool® Epoxy Primer Sealer — 25–30m² per 4L kit, per coat
• Luxapool® Chlorinated Rubber — 7–9m² per litre, per coat (30–35m² per 4L can)

Pebblecrete is the big exception. The textured surface roughly halves epoxy coverage to 10–13m² per 3.5L kit per coat, and Colormaker recommends three coats rather than two. If your pool is pebblecrete, budget for roughly double.

Typical Pools, Real Numbers

Colormaker’s own worked figures for a two-coat epoxy finish:

• 10m × 5m — 8 to 10 kits of epoxy topcoat
• 8m × 4m — 6 to 7 kits
• 6m × 3m — 4 to 5 kits

Painting a new or uncoated pool? Add Epoxy Primer Sealer underneath — around 4 kits alongside 8 kits of topcoat on a standard 10m × 5m pool. Repainting over sound existing epoxy? Straight to topcoat.

What Changes Your Numbers

• Surface material — pebblecrete and rough render soak up far more than smooth fibreglass or sound old epoxy.
• Surface condition — rough, porous or previously etched surfaces need more.
• Depth profile — wall area often exceeds floor area. A deep-end pool needs materially more than a wading pool of the same footprint.
• Number of coats — epoxy needs a minimum of two; pebblecrete needs three.
• Priming — a primer sealer on bare surfaces reduces topcoat absorption.

Measuring Your Pool

1. Floor area — length × width.
2. Walls — perimeter × average depth. Average the shallow and deep ends.
3. Add them together for total surface area.
4. Multiply by the number of coats, then divide by the coverage rate above.

A 10m × 5m pool with a 1.8m deep end and 1.2m shallow end works out to about 95m² — 190m² across two coats.

Colormaker’s own advice on this is worth repeating: always allow for a little more rather than run short.