I have seen the question pop up a few times lately, and every time it goes without good answer. Once, I tried to put rudimentary measurement to the thought, but can't remember the specifics of the results.

So here, for all to see, I will try to find as close a measurement as I can to settle this big Q once and for all. Here goes nothing:

• A block in Minecraft is usually exactly 1 meter cubed (1m x 1m x 1m)
• The east-west length in the middle (presumably the equator) runs from what appears to be about X = 0, up to X = 25000
• X increases by one per block moving towards the east, meaning X = 1 meter (since 1 block = 1 meter wide)
• Therefore the visible section of the globe (our world map) appears to be roughly 25,000 meters.
• 1 meter = 1,000 km | 25,000 / 1,000 = 25 km (SIMPLE!)
• 1 meter = about 3.3 feet | 25,000 x 3.3 = 82,500 feet | 1 mile = 5,280 feet | 82,500 / 5,280 = about 15.6 miles (AMERICAN!)

Okay, so 25 km (or 15.6 mi) is astonishingly small for the circumference of a planet, especially one with terrain as varied as the show -- but let's consider that there are parts of the planet we don't see, likely covered in a large sea like the Pacific Ocean of our own planet Earth.

So let's say it's huge and covers half the planet, so that we only ever see one half. It's a little dubious since the Water Tribe continents are centered on the poles of the planet (the portals), which means they may occupy a gigantic portion of the globe (as Antarctica does despite its scaling-down in traditional Western world maps), but we'll roll with it for the sake of curiosity.

That makes our planet's circumference a grand 50 km, or just over 31 mi. Okay, okay, not bad, right? That's gotta be close to Earth, right? Right?!

Try over 40,000 km (24,900 mi).

Does this put the AvatarMC world in perspective for ya?

Hell, our world would just barely crush New York City if it hit Earth. It would, however, still absolutely destroy all life on Earth.