D&D General Toril must be a Super Earth.

[Sword of Spirit]

We have no complete map of Toril in 5e, so we can only extrapolate based on available data.

Of course. I was basing it on distances between the same locations on maps from different editions.

 

[Scrivener of Doom]

Okay so going by size of Faerun, which is not the largest continent on Toril, Toril has to be a Super Earth to fit so many enormous Continents and Oceans. (snip)

It might be worth asking Ed for some information. Unlike TSR, he put a lot of thought and research into the size of the planet (and everything else).