The official Spell Slot Calculator for Baldur’s Gate 3 (BG3) based on the Dungeons & Dragons 5th Edition ruleset. Quickly determine the number of spell slots your Full Caster character (like a Wizard or Sorcerer) has available at any given level.
BG3 Spell Slot Calculator
Total Spell Slots Available
Detailed Slot Allocation
BG3 Spell Slot Calculator Formula
Spell Slots = TableValue(CasterLevel, SlotLevel)
Variables
- Total Character Level (1-12): The overall level of your character. In BG3, this maxes out at Level 12.
- Casting Proficiency: Defines how quickly your character gains spell slots (Full, Half, or Third Caster).
Related Calculators
- BG3 Hit Chance Calculator
- BG3 Damage Modifier Tool
- BG3 Multiclass Level Planner
- BG3 Armor Class Analyzer
What is the BG3 Spell Slot Calculator?
In Baldur’s Gate 3 (BG3), spellcasting uses the Spell Slot system from Dungeons & Dragons 5th Edition. A spell slot is essentially a “charge” required to cast a spell of a specific level (1st-level, 2nd-level, etc.). Once a slot is used, it cannot be recovered until the character completes a Long Rest (or a Short Rest for certain classes).
The number of available spell slots is strictly determined by a character’s total level in a spellcasting class. Higher-level slots allow a character to cast more powerful spells or cast lower-level spells at a higher effectiveness (upcasting). Accurately knowing your slot count is crucial for resource management during long dungeon crawls or boss fights.
How to Calculate Spell Slots (Example)
- Determine Caster Level: First, check the character’s level in their primary spellcasting class (e.g., Wizard Level 5).
- Consult the Spell Slot Table: Refer to the Full Caster spell slot progression table for that level.
- Identify Slots: For a Level 5 Full Caster, the table shows the character has four 1st-level slots, three 2nd-level slots, and two 3rd-level slots.
- Sum the Total: Summing these up gives a total of nine spell slots available to the character.
Frequently Asked Questions (FAQ)
Do Warlocks use Spell Slots like other casters?
No. Warlocks use Pact Magic slots, which are fewer in number but always cast at the highest possible level and refresh on a Short Rest. This calculator only applies to standard Full Casters.
How does Multiclassing affect my Spell Slots?
Multiclassing uses a complex formula involving summing fractional caster levels. The simplified calculation here is best used for single-class characters. For multiclassing, refer to the D&D 5e Spellcasting rules.
What is the maximum Spell Slot level in BG3?
Since the level cap in BG3 is 12, the highest spell slot level a Full Caster can access is 6th-level.
Are cantrips counted as spell slots?
No. Cantrips are considered 0-level spells and can be cast an unlimited number of times without consuming a spell slot.