What are the exact new landscape settings to make a terrain as big as fortnite?

I am making a new project and I want it to be close to the size of fortnite’s map. Problem is I haven’t found any sources which can help me approximate that size of fortnite and then make a map of that size?
Any help will be appreciated.

20 sec on google told me epic has stated that fortnites playable area is 5.5KM^2 for battle royal mode, the closest landscape size would be 9 tiles of 2017x2017.