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120x120 Tile Calculator
A 120x120 cm tile covers 1.44 m², so you need about 0.69 tiles per square metre. A 12 m² room takes 9 tiles, or 10 with 10% waste.
120x120 Tile Calculator
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About 120x120 Tile Calculator
A 120 by 120 centimetre tile covers 1.44 square metres, so a square metre needs 0.69 of one. A 4 by 3 metre room of 12 square metres needs 9 tiles before waste and 10 with a 10 percent allowance. The size is preset on this page so you only enter the floor. This is about the largest format that is still handled like a tile rather than a slab, and almost every step of the job is affected by the size. Each 10 millimetre porcelain tile weighs around 33 kilograms, which is a two person lift, and it has to be carried on edge to avoid cracking. Measure the route from the van to the room, including doorways, stair turns and lifts, before ordering, because a 120 centimetre tile that cannot be carried in is a costly mistake. The floor must be very flat, and installers typically use levelling clips, a large notch trowel and full back buttering. Cutting needs a long rail cutter or a wet saw with a guide, which an ordinary tile cutter does not reach. With so few tiles per room, an awkward cut can cost a whole tile, so plan the layout first and centre it on the main sightline of the room. For a slightly smaller format see 100x100 Tile Calculator, or for a rectangle 60x120 Tile Calculator.
How to use 120x120 Tile Calculator
Choose metric or imperial, then enter the floor, wall or shower dimensions
Enter tile length and width in centimetres or inches
See tile count and optional box count in metric and imperial
Frequently Asked Questions
How many 120x120 tiles per square metre?
About 0.69, since each tile covers 1.44 square metres. Divide your area by 1.44, round up, and add the waste allowance.
How many 120x120 tiles for a 20 square metre room?
About 14 before waste and 16 with a 10 percent allowance. Order at least one additional spare, since a single breakage is a large share of the order.
How heavy is a 120x120 tile?
Around 33 kilograms for a typical 10 millimetre porcelain tile. It is a two person lift and should always be carried on edge.
What tools do I need to cut 120x120 tiles?
A rail cutter at least 125 centimetres long, or a wet saw with a straight guide. Most standard manual tile cutters are too short for this size.
Will 120x120 tiles fit through my door?
Measure before ordering. Carried on edge, the tile needs a clear opening of at least 120 centimetres in one direction, which is a problem on tight stair turns and in some lifts.