Grout Calculator

Calculate the amount of grout needed for tiling based on tile size, spacing, and area.

sq ft
in
in
in
in
%

How to Use This Calculator

<h4>How to Use</h4><ol><li>Enter the total area to be grouted.</li><li>Enter your tile dimensions (length and width).</li><li>Enter the tile thickness and joint (gap) width.</li><li>Adjust waste percentage if needed.</li></ol><h4>Tips</h4><ul><li>Standard joint width is 2–3 mm for wall tiles and 3–5 mm for floor tiles.</li><li>Larger joints use significantly more grout.</li><li>Use epoxy grout in wet areas for better water resistance.</li></ul>

Common Questions

How wide should grout joints be?

For wall tiles, 2–3 mm is standard. For floor tiles, 3–5 mm. Large format tiles (600 mm+) can use 2 mm joints with rectified edges.

How long does grout take to dry?

Initial set is 24–48 hours. Full cure takes 7–28 days depending on the product and conditions.

What is the difference between sanded and unsanded grout?

Sanded grout is for joints wider than 3 mm (1/8 in) – it is stronger and shrinks less. Unsanded grout is smoother and better for narrow joints and polished tile.

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