Question: how much bigger is botw than skyrim?
Answer: According to Reddit user's HylianWarrior impressive Breath of the Wild map, the in-game world is an estimated 60% bigger than Skyrim. The map--which isn't completely accurate, mind you--pinpoints Breath of the Wild's open-world Hyrule at 61.2 square kilometers, whereas Skyrim checks in at 36.72 square kilometers.