Armor Class (AC): Your armor’s effectiveness and your ability to dodge or deflect physical blows is measured by your AC. The armor you wear, the type of shield you use (if any), and possibly your Intelligence or Dexterity all contribute to this.
To calculate the size of the air conditioner you need for a room, first, multiply the length of the room with its width. Then multiply it with 25 BTU to get the ample cooling for the room under different weather conditions. For example, if the room is 15 feet long and 12 feet wide, it comes to 180 square feet.
How does AC work in 5e? When making an attack against a creature, if the attacker meets the defender’s AC the attack will hit. When making a Saving Throw, Armor Class does not affect the outcome of the roll.
The base calculation for a character’s Armor Class is 10 + that character’s dexterity modifier. If you need, you can learn more about modifiers and ability scores here. For most classes, wearing armor provides them with extra Armor Class.
Here are some ways to calculate your base AC: Unarmored: 10 + your Dexterity modifier. Armored: Use the AC entry for the armor you’re wearing (see PH, 145). For example, in leather armor, you calculate your AC as 11 + your Dexterity modifier, and in chain mail, your AC is simply 16.
Add your Dexterity Modifier to the base 10 for your total. If you wear Armor, replace the 10 with the Base AC of that Armor Type. For Light and Medium Armor, you can still add your Dexterity modifier to this number. For Heavy Armor, Dexterity bonuses do not apply.
Registered User. AC = 10 + armor + shield + dex bonus + size (generally 0 for characters). The armor/shield values listed in the equipment section are additive. High armor is good.
To calculate the size, simply multiply the length times the width of the room or area to be cooled. Then, as a practical number, multiply that total times 25 BTU. This allows ample cooling, whether it is a rainy, moist day or a hot, sunny, humid day.
Without armor or a shield, your character’s AC equals 10 + his or her Dexterity modifier. Keep in mind that this is simply the default way to calculate AC.
As you can see, a multiclass Barbarian/Monk does not get to add all of their Dexterity, Constitution and Wisdom modifiers to the Armour Class! They have three ways of calculating their base AC, but can only choose one. However, they can benefit from as many other bonuses to AC as they like.
It’s totally normal for most attacks to hit in a high-level combat where everyone is swinging with attacks above +10. Generally speaking, without magic items, the highest AC a character can reach is in the low 20s. A paladin with a shield wearing plate armour isn’t going to go much past 20 without magical assistance.
Chainmail (heavy armor, ac 16, disadvantage on stealth, strength 13 required) should be a starting item for fighters, paladins, and some clerics. As the text said, chainmail is a start item for classes in DnD 5e.