1. What Is Spell Attack Bonus?

Spell Attack Bonus is a key mechanic in Dungeons & Dragons 5th Edition that represents a spellcaster's accuracy when casting spells that require an attack roll. It combines the caster's proficiency with their relevant ability modifier.

2. How Does The Calculator Work?

The calculator uses the D&D 5e spell attack formula:

Where:

• \( \text{Proficiency} \) — Character's proficiency bonus based on level
• \( \text{Ability Mod} \) — Modifier from spellcasting ability (Intelligence for wizards, Charisma for sorcerers, etc.)

Explanation: This bonus is added to the d20 roll when making a spell attack against a target's Armor Class.

3. Importance Of Spell Attack Bonus

Details: Spell Attack Bonus determines how likely your offensive spells are to hit targets. A higher bonus increases your chances of successfully affecting enemies with attack roll spells.

4. Using The Calculator

Tips: Enter your character's proficiency bonus and relevant spellcasting ability modifier. Both values should be integers representing the appropriate bonuses.

5. Frequently Asked Questions (FAQ)

Q1: What is the typical range for proficiency bonus?
A: Proficiency bonus ranges from +2 at 1st level to +6 at 17th level, increasing every 4 character levels.

Q2: Which ability modifier is used for spell attacks?
A: It depends on your class: Intelligence for wizards, Wisdom for clerics/druids, Charisma for sorcerers/warlocks/bards.

Q3: Can spell attack bonus be negative?
A: Yes, if your ability modifier is negative and your proficiency bonus is low, though this is rare for dedicated spellcasters.

Q4: Does this apply to all spells?
A: No, only spells that specifically require an attack roll. Many spells require saving throws instead.

Q5: How does this compare to weapon attack bonus?
A: The calculation is similar, but weapon attacks use different ability modifiers (usually Strength or Dexterity).