In Terraria for Xbox One, there is an achievement called "Hallow most of the world." How much of the world do I need to hallow to get this achievement? I want to know because my world is already 23% hallow and I don't have much world left to hallow.
The Console achievement Hallowed Be Thy Name requires your world to be at least 50% Hallow. The Dryad NPC can tell you how much of the world is Corrupt/Crimson or Hallow.
If you're looking for more area to Hallow, remember to spread Hallow to the underground areas as well. The Cavern layer, which is primarily composed of stone, is where you'll do most of your underground work. Hallowed Seeds can be used to spread the Hallow on the surface, but you'll want to use the Clentaminator with the Blue Solution to spread the Hallow to stone blocks underground in a timely manner.