Pool Tile Calculator
Work out how many boxes of tile, sheets and grout you need for a waterline band or a full pool interior. Pick your pool shape, enter a few measurements and get a material list you can send to us for an exact quote.
- Ezarri 25 mm glass mosaic
- 10% waste added by default
- $5 tile samples
- Real people at 800-866-0695
Get an exact quote
Your estimate is already in the message box. Add your name, email and phone, then press Submit. We reply with exact quantities, adhesive and membrane included. Prefer to talk? Call 800-866-0695 or use our contact page.
How to calculate pool tile
For a waterline band, multiply the pool’s perimeter by the band height: a 16 × 32 ft pool has a 96 ft perimeter, so a 6-inch band is 96 × 0.5 = 48 sq ft. For a full interior, add the floor area to the wall area (perimeter × average depth). Then add 10% for cuts and waste and divide by 21.5 sq ft per box of Ezarri 25 mm mosaic, rounding up. Order one 2.5 kg container of epoxy grout for every box.
Worked examples (10% waste)
| Pool | Tile area | With 10% waste | Boxes | Grout (2.5 kg) |
|---|---|---|---|---|
| 16 × 32 ft rectangle, 6-inch waterline band | 48 sq ft (96 ft perimeter × 0.5 ft) | 52.8 sq ft | 3 boxes | 3 |
| 16 × 32 ft rectangle, full interior, 4 to 6 ft deep | 993 sq ft (floor 513 + walls 480 (96 ft × 5 ft)) | 1,092.3 sq ft | 51 boxes | 51 |
| 18 ft round pool, 6-inch waterline band | 28.3 sq ft (56.5 ft perimeter × 0.5 ft) | 31.1 sq ft | 2 boxes | 2 |
| Kidney 32 ft long, 16 / 12 ft wide, 90 ft perimeter, 4 to 6 ft deep | 854 sq ft (floor 404 + walls 450) | 939.4 sq ft | 44 boxes | 44 |
| Any pool, 800 sq ft of tile | 800 sq ft (given) | 880 sq ft | 41 boxes | 41 |
Measure before you buy
A one minute guide to measuring your pool so you order the right number of boxes.
How this calculator works
Pool shapes
- Rectangle: L × W. Perimeter 2(L + W).
- Round: π × D² ÷ 4. Perimeter π × D.
- Oval: π × L × W ÷ 4 (an ellipse, about 0.785 × L × W). Perimeter by Ramanujan’s ellipse formula.
- Kidney: 0.45 × (A + B) × L, the standard pool-industry estimate. Perimeter is measured, because kidney curves vary.
- Roman: L1 × W plus a half-ellipse end, π × (L2 − L1) × W ÷ 4.
- L-shape: L1 × W1 + L2 × W2. Perimeter 2(L1 + W1 + W2).
Walls, floor and band
- Walls: perimeter × average depth, where average depth is (shallow + deep) ÷ 2.
- Floor: plan area, stretched slightly for the slope from shallow to deep end.
- Waterline band: perimeter × band height.
- Steps add their risers; benches add their front face.
- Interior + accent band: the band is taken out of the interior so you don’t pay for it twice.
Boxes, sheets and grout
- Waste: area × 1.05, 1.10 or 1.15.
- Boxes: area ÷ 21.5 sq ft, rounded up. Each box holds 13 sheets.
- Grout: one 2.5 kg container of Litokol Starlike® epoxy grout for every box of 25 mm tile, so grout = boxes.
- Adhesive (PowerGel S1+ or Pro Max) and SafetyGel membrane coverage depends on trowel and substrate, so we confirm those with you.
Pool tile calculator questions
How many boxes of tile do I need for a pool waterline?
Multiply the perimeter by the band height, add 10% and divide by 21.5 sq ft per box. A 16 × 32 ft pool with a 6-inch band needs 48 sq ft, or 52.8 sq ft with waste, which is 3 boxes of Ezarri 25 mm mosaic.
How much tile do I need to tile a whole pool?
Add the floor area to the wall area (perimeter × average depth), plus step risers and bench faces. A 16 × 32 ft pool that goes from 4 to 6 ft deep has about 993 sq ft of surface, 1,092 sq ft with 10% waste, which is 51 boxes.
How much extra tile should I order for waste?
We recommend 10% for most pools. Use 5% only for a simple rectangle with an experienced installer, and 15% for freeform pools, lots of curves or many cuts. Leftover sheets are useful for future repairs.
How much grout do I need for pool mosaic?
Order one 2.5 kg container of Litokol Starlike® epoxy grout for every box of 25 mm mosaic. A 16 × 32 ft pool with a 6-inch waterline band needs 3 boxes, so 3 containers of grout; a full interior of 51 boxes needs 51 containers.
How much adhesive and waterproofing membrane do I need?
PowerGel S1+ and PowerGel Pro Max adhesive and SafetyGel membrane coverage depends on the trowel and on your pool surface, so we confirm those quantities with you. Send us your estimate or call 800-866-0695.
How do I measure a kidney or freeform pool?
Measure the overall length, the width at the wide end (A) and at the narrow end (B), then run a tape or string around the edge at the water line for the perimeter. The calculator uses 0.45 × (A + B) × length for the floor. For unusual shapes, choose "I know my sq ft" or send us a drawing.
How many sheets are in a box of Ezarri tile?
A box of Ezarri 25 mm glass mosaic holds 13 sheets and covers 21.5 sq ft (2 m²), so each sheet covers about 1.65 sq ft. Tile is sold by the full box.
Can I see the tile before I order?
Yes. You can order a $5 sample of any Ezarri colour so you can see it in daylight and under water before you buy.
Want us to check your numbers?
Send your estimate and a photo or drawing of your pool. We’ll confirm tile, grout, adhesive and membrane quantities before you order.