The Tears of the Kingdom patents leaked in late 2021. Filed by Nintendo, they protect gameplay features found in the Breath of the Wild sequel. This article will tell you everything you need to know about them.
If you look up the size of the game online, articles confidently say it is between 200 and 500 miles squared.
This is very, very wrong. So, I decided to calculate it myself.
Spoiler alert, it's 21 km2, or 8.1 miles2.
This article details how I came to this conclusion, as well as the size of each individual maps.