How Many 20×20cm Tiles for 5m²?

Last updated: 2026-06-23

How Many 20×20cm Tiles for 5m²?. Calculate exactly how many 20×20cm ceramic tiles you need to cover 5m², including adhesive, grout and 10% wastage. Enter your values in the form and get instant results, including a full materials breakdown and an adjustable wastage allowance. Quick answer: you need approximately 138 tiles (124 net + 10% wastage)

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Written and reviewed by the CalcToWork editorial team. Last updated: 2026-06-23.