D&D Armor Class Calculator

This works out Armor Class for a fifth edition D&D character from the armor table in the System Reference Document. Pick the armor or Unarmored Defense feature, give it the ability scores, tick a shield and add any magic or situational bonuses, and it returns the Armor Class with the whole sum written out so you can check it. It also tells you whether the armor carries disadvantage on Stealth and whether your Strength meets its requirement. A second tab lists every suit in the table at your Dexterity so you can see which one actually gives you the highest number.