Tile coverage is set by how many of each tile fit in a square metre, which depends on the tile type and how it is gauged. Enter your roof area and pick a tile and this works out the tiles, ridge tiles and battens you need, plus a wastage margin so you do not run short halfway up the roof.

How many tiles do you need?

The sloped surface, not the footprint. Use our roof area calculator if unsure.
Tiles per m² varies hugely by type. Check the maker’s figure for your exact tile.
Total run of ridge and any hips. Leave blank to skip ridge tiles.

Estimate for ordering and quote-checking. Coverage depends on the exact tile and the batten gauge your roofer sets, so always confirm against the manufacturer’s fixing data for your chosen tile.