How Many Tiles for a 5×4 m Outdoor Patio?
Calculate how many 45×45 cm tiles are needed for a 5×4 metre outdoor patio including a 15% waste allowance for cuts.
How to use this tool
- Enter room length, room width, tile length, tile width and waste allowance in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your tiles needed and the full breakdown beneath it.
Estimate the tile quantity for a 5×4 metre outdoor patio using 45×45 cm tiles with extra waste for diagonal cuts.
Frequently asked questions
- How many tiles do I need?
- Divide the total floor area by the area of a single tile, then add a 10% waste allowance for cuts and breakage.