Kitchen floors rarely have clean rectangular corners – there are cabinets, an island, maybe a notched-out section. Here's the simple method.
Measure the floor area where tiles will go (including under cabinets if you tile right through). For 30 × 30 cm tiles that's 11 tiles per m². Add 10 % waste on top.
You can tile right through under the base cabinets or stop at the kickboard. Tiling through is cleaner if you ever swap kitchens later – but uses more tiles.
Per m² of floor: 11 tiles at 30 × 30 cm, 4 at 50 × 50 cm, 2.8 at 60 × 60 cm.
Always add at least 10 % waste in a kitchen – there are more cuts around cabinets, islands and thresholds than in a normal room.
A 12 m² kitchen with 30 × 30 cm tiles = 132 tiles. Add 10 % waste and that's 146. At 11 tiles per box, you need 14 boxes. If you tile under the cabinets too, plan for around 14 m² instead (12 + roughly 15 % cabinet footprint).
Enter your floor area, pick a tile size and see the exact box count.
Smart if you might swap kitchens in 10–15 years. You save tiles now but it costs more later when you remodel.
10–12 % in a normal kitchen with few angles. 15 % if you've got an island, thresholds or out-of-square walls.
30 × 30 cm up to 60 × 60 cm is common. Larger tiles look modern but need a really flat subfloor.
R9–R10 is usually fine for a kitchen. R11 is better if you tend to splash water (e.g. by the sink).
Keep going with one of these – they pair well with what you just read.
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