Question 1

What is a tile calculator?

Accepted Answer

A tile calculator works out how many tiles and boxes a floor or wall takes.

Question 2

How do I calculate how many tiles I need?

Accepted Answer

Add extra to the area, divide by 1 tile's area, and round up.

Question 3

How many 12 by 12 tiles do I need for 100 square feet?

Accepted Answer

100 tiles, or 110 with 10% extra.

Question 4

How many square feet does a 12 by 24 tile cover?

Accepted Answer

2 square feet.

Question 5

How much extra tile should I buy?

Accepted Answer

Set your own share for cuts and spares.

The calculator's example uses 10%.

Question 6

Does the calculator count grout?

Accepted Answer

No, it uses the tile's own size, so the grout lines leave a little spare.

Question 7

Can I use centimeters?

Accepted Answer

Yes, switch to meters and type the tile's size in centimeters.

Question 8

Is the tile calculator free?

Accepted Answer

Yes, it's free with no sign-up.

It runs in your browser, and your numbers stay on your device.

Question 9

Who made the tile calculator?

Accepted Answer

I did.

I'm Navid Moazzez, and I made the tile calculator as one of my free tools on navid.me.

Free Tile Calculator (+ Guide)