Armor Class in DnD 5e can sometimes be a bit confusing for new players. There are a lot of numbers and modifiers flying around, as well as types of armor to consider. The good news is that calculating Base AC is super simple and barely even counts as math.
Base AC = 10 + Dexterity Modifier
That’s it! Now you know your Base AC and can build on your Armor Class from there.
Your character’s AC is affected by what type of armor you wear, spell effects, or an ability that your character has. Check out our list of Armor in DnD 5e or our Mage Armor spell guide to learn more.