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Attack Bonus Formula:
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The Attack Bonus in Dungeons & Dragons 5th Edition represents your character's chance to hit a target with weapon attacks or spell attacks. It combines your character's training (Proficiency Bonus) with their natural ability (Ability Modifier) to determine how accurately they can strike their opponents.
The calculator uses the Attack Bonus formula:
Where:
Explanation: The formula combines your character's learned combat skills with their natural physical capabilities to determine their overall attack accuracy.
Details: Accurate Attack Bonus calculation is crucial for determining hit probability in combat, character optimization, and ensuring fair gameplay. It affects every attack roll your character makes.
Tips: Enter your character's Proficiency Bonus (based on level) and the relevant Ability Modifier (Strength for melee weapons, Dexterity for ranged/finesse weapons). Both values must be valid integers.
Q1: What is the Proficiency Bonus progression?
A: Proficiency Bonus starts at +2 at level 1, increases to +3 at level 5, +4 at level 9, +5 at level 13, and +6 at level 17.
Q2: How do I determine Ability Modifier?
A: Ability Modifier = (Ability Score - 10) ÷ 2, rounded down. For example, Strength 16 gives +3 modifier.
Q3: Are there other modifiers to Attack Bonus?
A: Yes, magical weapons, class features, spells, and combat styles can provide additional bonuses to attack rolls.
Q4: Does this work for spell attacks?
A: Yes, for spell attacks use Proficiency Bonus + Spellcasting Ability Modifier (usually Intelligence, Wisdom, or Charisma).
Q5: What's a good Attack Bonus at low levels?
A: At level 1, a +5 to +7 Attack Bonus is typical. This increases as you gain levels and better equipment.