Shower Tile Calculator
Calculate how many tiles you need for your shower walls. Supports multiple walls and all tile sizes.
Last updated: January 8, 2026
Enter Your Measurements
Shower Walls
Most showers have 3 walls (back + 2 sides). Add a 4th wall if tiling the ceiling.
Quick Presets:
Common: 3×6 subway ≈ 48/box, 4×4 ≈ 50/box, 12×12 ≈ 12/box
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Results
775
tiles needed
Total Area:88 sq ft
Base Tiles:704 tiles
Extra for Waste:+71 tiles
Boxes Needed:~17 boxes (48/box)
By Wall:
Back Wall:40 sq ft (320 tiles)
Left Wall:24 sq ft (192 tiles)
Right Wall:24 sq ft (192 tiles)
Calculation Steps
Total Wall Area: Sum of all enabled walls= 88 sq ft
Tile Area: 3" × 6"= 0.125 sq ft per tile
Base Tiles: 88 ÷ 0.125= 704 tiles
+ 10% Waste: 704 × 1.1= 775 tiles
Privacy First - All calculations in your browser Industry-standard formulas
How to Use the Shower Tile Calculator
- Measure your shower walls — Measure the width and height of each wall in inches. Standard shower height is 96 inches (8 feet).
- Add or remove walls — Most showers have 3 walls. Click "Add Wall" if you're tiling the ceiling or have a fourth wall.
- Choose your tile size — Classic 3×6 subway tiles are the most popular for showers. Larger tiles create a modern look.
- Add waste percentage — Showers have lots of cuts around fixtures. We recommend 10% for standard layouts, 15% for complex patterns.
- Review results — The calculator shows total tiles needed including waste, plus boxes to purchase.
How We Calculate
Tiles Needed = (Total Wall Area ÷ Tile Area) × (1 + Waste%)
Example Calculation:
- • Back wall: 60" × 96" = 5,760 sq in = 40 sq ft
- • Side walls: 2 × (36" × 96") = 6,912 sq in = 48 sq ft
- • Total area: 40 + 48 = 88 sq ft
- • Tile: 3" × 6" = 18 sq in = 0.125 sq ft per tile
- • Base tiles: 88 ÷ 0.125 = 704 tiles
- • With 10% waste: 704 × 1.1 = 774 tiles
Waste percentage and installation best practices per TCNA Handbook. Learn more →