Home Back

How to Calculate Weapon Attack Bonus 5e

Attack Bonus Formula:

\[ \text{Attack Bonus} = \text{Proficiency Bonus} + \text{Ability Modifier} \]

unitless
unitless

Unit Converter ▲

Unit Converter ▼

From: To:

1. What is Weapon Attack Bonus?

The Weapon Attack Bonus in Dungeons & Dragons 5th Edition represents your character's chance to hit a target with a weapon attack. It combines your character's training (Proficiency Bonus) and natural ability (Ability Modifier) with the weapon.

2. How Does the Calculator Work?

The calculator uses the Attack Bonus formula:

\[ \text{Attack Bonus} = \text{Proficiency Bonus} + \text{Ability Modifier} \]

Where:

Explanation: This formula represents your character's combined skill and natural talent when making weapon attacks.

3. Importance of Attack Bonus Calculation

Details: Accurate Attack Bonus calculation is crucial for determining hit probability in combat, character optimization, and ensuring fair gameplay according to DnD 5e rules.

4. Using the Calculator

Tips: Enter your character's Proficiency Bonus (based on level) and the relevant Ability Modifier (Strength for melee weapons, Dexterity for ranged/finesse weapons).

5. Frequently Asked Questions (FAQ)

Q1: What Ability Modifier should I use?
A: Use Strength for melee weapons, Dexterity for ranged weapons and finesse weapons. Some class features may allow different ability modifiers.

Q2: How do I determine Proficiency Bonus?
A: Proficiency Bonus is based on character level: +2 (levels 1-4), +3 (levels 5-8), +4 (levels 9-12), +5 (levels 13-16), +6 (levels 17-20).

Q3: Are there any additional bonuses?
A: Yes, magical weapons, class features, feats, and fighting styles can provide additional bonuses to attack rolls.

Q4: What's the difference between attack bonus and damage bonus?
A: Attack bonus affects your chance to hit, while damage bonus adds to the damage dealt on a successful hit.

Q5: Do all weapons use the same calculation?
A: Most weapons follow this formula, but some special weapons or class features may have different calculations.

How to Calculate Weapon Attack Bonus 5e© - All Rights Reserved 2025