ivaan-ffxiv:

Following my obsession with these fictional animals, I decided to seek an answer to one of my biggest questions about them: Their speed.

Using the aether compass, I’ve determined that the squares on the in-game map to be exactly 50 yalms/yards by traveling from the line of one map square to the other.

Next, I timed how long it took my chocobo to make the same journey, using a stopwatch to take three separate times:

5.49

5.57

5.64

For an average of 5.57 seconds, rounded up to the nearest hundredth of a second.

50 yards / 5.57 seconds = 8.98 yards per second, or 8.211 meters per second.

Plugging this value into a converter gives us a speed of 

18.37 MPH, or 29.56 KM/H

Not at all a bad speed for a chocobo! An ostrich of Earth can run at a sustained speed of 31 MPH, or 

49.89 KM/H. That is without an armored rider on its back, making this estimate totally plausible for a chocobo, which could likely reach similar speeds unburdened.

Since all ground mounts move at the same speed, this would apply for Coeurls, Behemoths, etc. Though I have a feeling that the biomechanics of chocobos in particular were the model to decide the speeds of the game’s mounts.

I’ll do flying mounts next!