There's already a question asking what the smallest component is.

However, according to its answer, the smallest piece would be the screwdriver.
Lego screwdriver
It is pretty small, but its length is over 2 studs, perhaps even exactly three (I don't have one on hand to check). A regular 1x2 plate is smaller in that regard.

What is the smallest piece measured by its largest dimension?

The smallest I could come up with is the 1x1 round plate. Is there anything smaller?

Round 1x1 Lego plate


This tiny tiara piece is smaller than the 1x1 round plate on all sides (middle piece in my image below).

Lego tiara

  • The piece appear in seven sets, so any of those could be used to compare the size to other elements. But it really is a tiny piece that is sometimes hard to make out on the pictures. Here are a couple of images that might be more helpful: bricklink.com/v2/catalog/catalogitem.page?M=dp027s#T=S&O={} and bricklink.com/v2/catalog/catalogitem.page?S=41141-1#T=S&O={} Dec 25 '16 at 16:50
  • I also have the tiara myself, so if you really need an image against studs I can take a picture. Dec 25 '16 at 16:54
  • 1
    My daughter got some Friends sets this morning that had bows that seem about the same size as well. Dec 26 '16 at 2:40
  • Do you think you can add an image of it next to a 1×1 round plate?
    – SQB
    Dec 26 '16 at 17:22
  • I added my image to my answer as well. I put the tiara on a plate next to some other small items for reference. Dec 26 '16 at 18:18

You'll have to ask my vacuum cleaner, It might have escaped me ;).

It depends on what qualifies as "Lego component", though. Made by Lego for Lego would be one of the obvious restrictions, I assume. Is there a restriction on material? If not, it's probably hard to beat the smaller ones of the stickers, but I'd be reluctant to consider them as qualifying, probably because I always considered them more of a disfigurement of good bricks.

I would habe considered the evasive 1x1 glass pane a near perfect candidate due to its 3rd dimension challenge, but that tiny tiara is hard to beat! Anyone able to compare both?

  • I'm not sure I've ever seen a sticker under 7mm in both dimensions though. Now if the question was about the smallest dimension, that would definitely be the answer.
    – Chris H
    Jun 3 '20 at 11:36

I'm thinking this trigger component for stud-blasters may be even smaller than the tiara. I don't have a tiara though, so I can't check :( Here is the piece

  • 3
    That trigger piece is actually just about twice as large as the tiara. I have both of them in front of me. The tiara is a very-very tiny piece. :) Dec 26 '16 at 4:19
  • Good to know! That thing must be incredibly small to be twice as small as the trigger. Sheesh! Dec 26 '16 at 17:23
  • 1
    I have added an image to my answer showing the tiara next to some other small pieces that people may be more familiar with. Hope that helps. :) Dec 26 '16 at 18:22

This would be a comment but for the need for pictures.

The Friends bow was listed as a possible contender, but it's a fair bit bigger than the tiara (which I don't have to show them side-by-side).

Small Friends accessories.

The binoculars/robot head come in a touch smaller in the largest dimension, and the flower smaller still. The bow is 12×10.5 mm, the binoculars 11.3×7.9 mm, and the flower 9.6 mm across. Scaling off the photo in TheBrickBlogger's answer the tiara is about 6.8 mm in both visible dimension.

Small Friends accessories again

As a comparison a minifig hand is 11 mm long, while a Friends microphone is 12.8 mm long

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