You have selected the tile size:
And requires the number of tiles for area (m²)
Total quantity of tile you need is:
Cement tile is a handmade product, which is taylor made on every specific order. Therefore, we recommend that you should to place order more than quantity of your need about 3 % - 5%. This is just our suggestion and we won't take any responsibility related to short of quantity or any related claim/complains.