Avernus Size

[Techcaliber]

Weird question for a personal project. Is there an official size of Avernus? And if so what is it? Thanks.

[JackPhoenix]

Yes. It's infinite. Or at least "big enough to be functionally infinite".

[Millstone85]

When discussing anything to do with deities, the language used must be highly metaphorical. Their actual homes aren't literally places at all, but exemplify the idea that the Outer Planes are realms of thought and spirit. As with the Elemental Planes, one can imagine the perceptible part of the Outer Planes as a border region, while extensive spiritual regions lie beyond ordinary sensory experience.

Even in perceptible regions, appearances can be deceptive. Initially, many of the Outer Planes appear hospitable and familiar to natives of the Material Plane. But the landscape can change at a whim of the powerful forces that dwell on these planes, which can remake them completely, effectively erasing and rebuilding existence to better fulfill their divine needs.

Distance is a virtually meaningless concept on the Outer Planes. The perceptible regions of the planes can seem quite small, but they can also stretch on to what seems like infinity. Adventurers could take a guided tour of the Nine Hells, from the first layer to the ninth, in a single day--if the powers of the Hells desire it. Or it could take weeks for travelers to make a grueling trek across a single layer.Basically, it is a dreamscape.

[Avonar]

Weird question for a personal project. Is there an official size of Avernus? And if so what is it? Thanks.

Size isn't really a thing in Avernus. One of the things specified in Descent into Avernus is that distances can change, so 6 miles can turn into 60 miles, all because hell is a bad place and it hates you.

[Techcaliber]

Thank you all for your responses.