Short answer. Over 80,000 GB, or roughly 80 terabytes. 2b2t states it on its own homepage. That figure went up on 4 June 2025 and has not been updated since, so the true number today is probably higher. Nobody has published a newer one.
The number, and who says it
2b2t.org puts it in a single sentence on the front page: “The world is 15 years old, with a size of over 80,000 GBs and over 1 million players visiting.”
That is the only current first-party figure. Nobody outside the server has ever held the world, so nobody else can measure it.
The community wiki keeps a record of how it grew, most entries cited to a forum post or an archived snapshot of the site at the time:
| Date | Size |
|---|---|
| April 2011 | 8.6 GB |
| February 2012 | 100 GB |
| April 2013 | 502 GB |
| January 2018 | 3,579 GB |
| December 2020 | 9,567 GB |
| December 2023 | 28,300 GB |
| December 2024 | 58,200 GB |
| June 2025 | over 80,000 GB |
At the rate it grew across 2024 and 2025, the world is probably between 120 and 140 TB as of September 2026, starting from the 80,000 GB published in June 2025. That is extrapolation, not a measurement, and we would rather say so than invent a number.
Where “100 TB” came from
Wikipedia’s article says the size is “~100 TB (based on map size ~80 TB ± others)”, and repeats “over 100 terabytes” in its opening paragraph.
That parenthetical is an editor showing their own arithmetic. We traced the edit in the article’s revision history. On 11 July 2026 a temporary account changed the infobox from 80 TB to 100 TB and the lead from “over 80 terabytes” to “over 100 terabytes”, across three edits, all with blank edit summaries. The citation attached to the figure was left untouched, and it points at 2b2t’s homepage, which says 80,000 GB. Nobody has challenged it on the article’s talk page.
It is not that 100 TB is necessarily too high. Given how stale the official figure is, the real number may well be past it. The problem is that it is sourced to a page that says something different, and it is now being repeated as fact by content sites and by AI-generated answers.
For what it is worth, an earlier edit in 2024 updated the same figure with the summary that Reddit had updated to 28.3 TB, so the editor was updating Wikipedia to match a subreddit sidebar. That has been the evidence standard on this number for years.
The “only 1% has been explored” claim is wrong
This one circulates constantly and it has no source. It is not on 2b2t’s site, not in any announcement, and not on the community wiki. The earliest instances we can find are social media posts from 2025. It is now repeated by AI search answers, sourced to nothing.
The real figure is far smaller, and you can check the arithmetic.
Minecraft’s world border makes the world 59,999,968 blocks across, which is 14.06 trillion chunks in the Overworld. Depending on which per-chunk size you assume for the versions 2b2t has run, 80 TB works out to somewhere between 0.02% and 0.12% of the possible area. The top of that range is barely a tenth of one percent, and the middle of it is nearer a twentieth. The real figure is lower still, because that chunk count is the Overworld alone while the 80 TB covers all three dimensions.
So “1%” overstates how much of 2b2t exists by somewhere between eight and fifty times. The honest version is that almost none of this world has ever been visited, and what has been visited clusters tightly around spawn and along the highways.
Why it is so much bigger than every other server
The oldest surviving Minecraft map is not 2b2t’s. It is MinecraftOnline’s Freedonia, which started on 4 August 2010, four months before 2b2t, and has never reset its Overworld. Over 330,000 players have visited it. Its Overworld came to about 26 GB when its operators last published a figure, in October 2021, so it is larger than that today.
MinecraftOnline is careful about how it words this and so are we. They claim the oldest truly public map, not the oldest server: Nerd.NU predates them in creative, and they count themselves tied with Novylen for the oldest survival server. The End was also reset once, in 2021. The Overworld never has been.
2b2t is roughly three thousand times larger. The reason is not age, and it is not popularity. It is that Freedonia fences its world to about 42,000 blocks across, while 2b2t left the border at Minecraft’s maximum of 60 million. Every elytra flight outward on 2b2t generates terrain that is then stored forever.
That single fact explains 2b2t’s size better than anything else. More on the border.
For scale
A freshly generated Minecraft world is a few tens of megabytes. One you have played casually might reach a few hundred. A heavily explored long-term singleplayer world runs to a few gigabytes. Those are rough orders of magnitude from ordinary experience rather than a measured survey, and we would rather label them that way than pass them off as data.
And 2b2t is still nowhere near a full world. If every chunk inside the border were generated, at roughly 10 KB a chunk, an Overworld alone would come to over a hundred petabytes. 2b2t’s 80 TB is something like one two-thousandth of that.
The largest area anyone has ever recorded of it, the 2026 archive, covers a square about a million blocks across, which is roughly 0.03% of the world by area, and it still came to 15 TB compressed.