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


7 Answers 7


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={} Commented Dec 25, 2016 at 16:50
  • I also have the tiara myself, so if you really need an image against studs I can take a picture. Commented Dec 25, 2016 at 16:54
  • 1
    My daughter got some Friends sets this morning that had bows that seem about the same size as well. Commented Dec 26, 2016 at 2:40
  • Do you think you can add an image of it next to a 1×1 round plate?
    – SQB
    Commented Dec 26, 2016 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. Commented Dec 26, 2016 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?

  • 1
    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
    Commented Jun 3, 2020 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

  • 5
    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. :) Commented Dec 26, 2016 at 4:19
  • Good to know! That thing must be incredibly small to be twice as small as the trigger. Sheesh! Commented Dec 26, 2016 at 17:23
  • 2
    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. :) Commented Dec 26, 2016 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


I think the smallest piece is the 58176 pin piece from Captain Phasma; it's super small.

6030198 pin piece

  • I think its smaller than the tiara
    – Bokchoy
    Commented Aug 29, 2022 at 22:54
  • Its also a little smaller than a 1x1 small round plate
    – Bokchoy
    Commented Aug 29, 2022 at 22:56
  • 4
    I think you ought to look closer at the tiara piece. The pin is not a regular 3.2mm pin, but even smaller (about 1.2mm). Besides, part 4770 is trivially smaller than 58176. Commented Aug 29, 2022 at 23:43
  • I guess you're right, the pin is about 3 millimeters bigger
    – Bokchoy
    Commented Sep 5, 2022 at 12:32

What about this one (4125253)? It's a part of a Tallneck from Horizon: Forbidden West set. It's even smaller than 1x1 flat piece. enter image description here

  • 4
    That's 25269 1x1 tile quarter round and, for the purposes of this question, its largest dimension measures √2 ≃ 1.4 studs (same as the diagonal of a 1x1 square plate), which makes it bigger than a 1x1 round plate. Commented Jan 15, 2023 at 14:45

I would say that the smallest piece of Lego (not an accessory) would be a piece that is one stud square, and flat on top. I'm looking at a white one right now, as I have nearly finished going through a gigantic pile of Lego from 1978-1982..

  • 3
    You mean a 1x1 tile? The tiara from another answer is smaller than that. Commented Aug 7, 2022 at 14:10

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