Tile Grout Calculator

Use our grout calculator to estimate how much tile grout you need. Enter your tile and area details below to get an instant estimate in kilograms.

Areas to Tile

Length (m): Width (m):

Tile & Joint Details

Tile Length (cm): Tile Width (cm):

Joint Width (mm): Joint Depth (mm):

How to Calculate Tile Grout

Accurate grout estimation ensures your tiling project is completed smoothly and without last-minute shortages. Our online grout calculator uses tile dimensions, joint width, and depth to provide a reliable estimate of grout needed in kilograms. Whether you're tiling a bathroom floor or a kitchen backsplash, this tool saves time and avoids waste.

What Factors Affect Grout Coverage?

Tile Size: Smaller tiles require more grout due to more joints.
Joint Width: Wider grout lines increase the volume of grout needed.
Tile Thickness / Depth: Deeper joints consume more grout.

Recommended Grout Allowances

On average, grout usage ranges between 0.2–0.5 kg per square metre. Always round up slightly to allow for overfill and waste. We recommend using a flexible, mould-resistant grout for most domestic applications.

Need Adhesive Too?

After estimating grout, check out our tile adhesive and grout collection to order all your tiling essentials in one go.