greenstar said:
It says your AC is 10 + your armor bonus + your shield bonus + your size modifier + your dexterity modifier. How do I tell what those things are?
Um... I'm assuming you're new to D&D. Since it would be pointless to go into detail (you've got a Player's Handbook, do you not? If so, read it. If not, why not?) I'll just make it simple:
Your armor bonus is the bonus granted by your armor. If you have armor, look wherever in the Player's Handbook you got your armor. Next to all of the armors is the AC bonus granted by said armor. (So if you have Full Plate, look in the PHB next to "Full Plate", and it'll say "+8". That's the Armor Bonus.)
Your shield bonus is, surprisingly, the bonus granted by your shield. If you have a shield, follow the same rules as for armor, except replace the word "armor" with "shield". And replace the words "Full Plate" with "Heavy Steel Shield" and "+8" with "+2".
Your size modifier is determined by your race, and is in your race's description. If you don't recall reading about a size modifier in your race's description (I'm going to hope that you read your race's description), then chances are you don't have one.
Your dexterity modifier is granted by your dexterity. Look at the Ability Scores section of the PHB, and look at what your dexterity score is. If your dexterity is, say, a 14, then according to the chart in the Ability Score section, your Dexterity Modifier is a +2. Therefore, your dexterity bonus to AC is a +2.