How many posts are published on X (formerly Twitter) each day?

How to get close to this number

Multiply users by posting rate. The platform has a few hundred million active users, and unlike most social networks a large share of them post rather than just read. A few hundred million users posting once or twice a day gives a figure in the hundreds of millions, and the explanation checks it at around 5,800 a second.

The unusual property is that posting is the norm here rather than the exception. Most platforms have a small creator minority and a large passive majority; this one was designed around short text that costs nothing to produce, so the participation ratio is far higher. That is why it produces more posts than platforms with five times the users.

The influence point in the explanation is the structurally important one: it has never been the largest network by users, but it has an outsized effect on news because journalists and politicians use it. Platform importance tracks who is on it rather than how many, which is why user counts are a poor guide to a platform's effect on public discourse.