How many tiles do we need for the bathroom?

How many tiles do we need to renovate our bathroom?

Bathroom Calculator

Hello, home front hero!

If you're reading this, you probably got that look from your wife. You know the one - the "Time to do something about that bathroom" look. And if you're like most of us, you gave a bold nod of "Yes, dear" before you even had an idea what you were getting yourself into.

Relax. You're not alone. I'm going to try to walk you through the most important part of Operation Bathroom 2025: How the hell do you figure out how many tiles you'll need without selling your car, your soul, and your collection of vintage screwdrivers.

Step 1: Get out the tape measure and pour yourself a coffee (or something stronger)

Time for measurements. Don't worry, we're not going to test ourselves on math. We just take the tape measure and measure:

  • The floor - length × width (in metres)

  • Walls - each separately: height × width

⚠️ Remember: there's a door, sometimes a window - subtract their area from the total. If you miss, you'll buy tiles for the ceiling by mistake too.

Step 2: Work out how big the tiles themselves are

You open the store's website and see "25×40 cm tiles".

Easy:
25 cm = 0.25 m
40 cm = 0.40 m
=> 0.25 × 0.40 = 0.1 sq. m per tile

So each tile covers 0.1 square metres of your bathroom.

Step 3: Do some maths (don't panic)

Now comes the magic:
Number of tiles = total area ÷ area of one tile

Example:
Total area: 20 square meters
One tile: 0.1 sq. m
=> 20 ÷ 0.1 = 200 tiles

Easy, huh? But only in words.

Step 4: There are always surprises (or "Oops, I broke one")

You're not a TikTok or YouTube master with a laser cutter and a 3D wall plan. The reality is that there will be cutting, breaking, and maybe a lot of swearing. About that:

  • Add at least 10% reserve - i.e. 200 tiles → 220 tiles

  • For any complicated corners, columns, shower enclosures - give yourself a little more advance

Bonus tips from people who's been down this road:

  • Buy all the tiles at once - don't end up with one batch being "white" and the other being "off-white with a shade of frog."

  • Don't believe the tempting thought, "I'll buy less, if they're not enough I'll get more". Guarantee: there won't be the same tiles in 2 weeks.

  • Ask your wife to choose the design and color. This is not a battle you want to fight. Trust yourself. Smile. Nod.

Final words (before taking the wallet)

  • Tile computation is not quantum physics. A little measure, a little calculus, a little extra margin - and you're set.
  • After that... there's no going back. The bathroom will be your arena. Either the master, which you'll call on day three or from the start.
  • Good luck, my friend. The bathroom may be fine, the nerves - not always.

Or there's an easier option to impress everyone:

  1. Use the Tile Calculator with a little AI: https://accdox.com/67lap
  2. And keep this map handy for courage:

Thought Map Bathroom Tiles

Now that you know all this, you can face your wife with confidence and say, "Yes, honey, I know how many tiles you need!"

Good luck. The bathroom renovation begins!


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