Tile Calculator

m² + tile count + adhesive + grout

Wall / floor length

Reading 3 m

Wall / floor width or height

Reading 2.4 m

Tile width

Reading 250 mm

Tile height

Reading 400 mm

Tiles per box

Reading 10

Waste allowance

10% straight lay, 15% diagonal or herringbone.

Grout joint width

Reading 2 mm

Tile thickness

Reading 8 mm

Adhesive bed

Results

Tiles needed

Boxes

8box

Surface area7.2 m²

Tiles per m²10

Waste added10%

Grout1.4 kg at 0.18 kg/m² (2mm joint, 8mm tile)

Adhesive2 × 20kg at ~4 m² a bag

250×400mm tile

Order 8 boxes

80 pc

20kg flexible tile adhesive

2 bag

5kg wall/floor grout

1 tub

2mm tile spacer (250pk)

1 pack

Trowel 10mm notch

1 pc

Estimates use standard UK trade rules of thumb. Always check the bag/spec on the day.