Bathroom Floor and Wall Tile Calculator
Calculate combined floor and wall area and the number of tiles for a bathroom from room size, door area and tile dimensions.
Formula
Planning estimate. Check product specifications and local requirements before purchasing.
Worked example: Bathroom Tile Calculator
Measurements in this example
| Length | 3 m |
|---|---|
| Width | 2.4 m |
| Height | 2.5 m |
| Door area | 1.9 m² |
| Tile length | 60 cm |
| Tile width | 30 cm |
| Waste allowance | 12 % |
Calculated quantities
| Area | 36.18 m² |
|---|---|
| Pieces | 201 |
What to check
This calculation uses: Length, Width, Height, Door area, Tile length, Tile width, Waste allowance. It returns: Area, Pieces.
Measure floor and every tiled wall separately, using the finished tiled height. Record doors, windows, bath panels and service boxes before combining the surfaces.
Keep floor and wall products separate when format, box coverage, slip rating or finish differs. A feature wall may also need its own batch.
Plan the starting lines around the bath, shower, niches and visible corners. Small strips and repeated penetrations increase practical waste.
Use the units beside each field. The values in the worked example are starting inputs; replace them with your measurements and the specifications of your material.
Compare alternatives
Open a tool, enter your measured dimensions, then save an estimate. Keep another version if you want to compare products or allowances.