D&D 5e Multiclass Spell Slots Calculator
Instantly calculate your character’s spell slots based on their class levels.
Enter Character Levels
Full Caster
Full Caster
Full Caster
Full Caster
Full Caster
Half Caster (Round Down)
Half Caster (Round Down)
Half Caster (Round Up)
Third Caster (Round Down)
Third Caster (Round Down)
Pact Magic (Separate)
Total Effective Caster Level
0
Full Caster Levels + 1/2 Half Caster Levels + 1/3 Third Caster Levels
Character Level
0
Full Caster Levels
0
Other Caster Levels
0
Multiclass Spell Slots
These are your combined spell slots from the Spellcasting feature. Warlock Pact Magic slots are separate.
| Spell Level | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th |
|---|---|---|---|---|---|---|---|---|---|
| Slots | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Warlock Pact Magic Slots
Pact Magic slots are separate, based only on your Warlock level, and recover on a short rest.
| Slot Level | Slots |
|---|---|
| N/A | 0 |
Spell Slot Distribution
A visual breakdown of your available spell slots per level.
What is a Multiclass Spell Slots Calculator?
A multiclass spell slots calculator is an essential tool for players of Dungeons & Dragons 5th Edition who build characters with levels in more than one spellcasting class. When you combine classes like Wizard and Cleric, or Paladin and Sorcerer, determining your available spell slots isn’t as simple as adding them together. The game has a specific formula to calculate a combined “caster level,” which then determines your total pool of spell slots. This multiclass spell slots calculator automates that entire process.
Anyone playing a character with the Spellcasting feature from two or more different classes should use this tool. This includes popular combinations like Sorcadins (Sorcerer/Paladin) or any character dipping into another class for extra utility. A common misconception is that you simply add your levels together, or that your spell slots from each class remain separate (which is only true for Warlock’s Pact Magic). This calculator clears up that confusion by providing the correct, rules-as-written result instantly.
Multiclass Spell Slots Calculator Formula and Explanation
The core of the multiclass spell slots calculator is the concept of an “effective caster level.” You don’t just add your class levels. Instead, you add fractions of your levels from certain classes and then sum them up. The formula is as follows:
Effective Caster Level = (Sum of all Full Caster levels) + (Sum of all Half Caster levels / 2) + (Sum of all Third Caster levels / 3)
Special rounding rules apply: Artificer levels are halved and rounded up, while all other partial casters (Paladin, Ranger, Eldritch Knight, Arcane Trickster) are rounded down. Once you have this final effective caster level, you look it up on the Multiclass Spellcaster table in the Player’s Handbook to find your final slot distribution. Our multiclass spell slots calculator does this lookup for you.
| Variable Group | Meaning | Classes Included | Typical Range |
|---|---|---|---|
| Full Casters | Contributes one full level to the caster level calculation. | Bard, Cleric, Druid, Sorcerer, Wizard | 1-20 |
| Half Casters | Contributes half their level (rounded down, except Artificer rounds up). | Paladin, Ranger, Artificer | 2-20 |
| Third Casters | Contributes one-third of their level (rounded down). | Fighter (Eldritch Knight), Rogue (Arcane Trickster) | 3-20 |
| Pact Magic | Does not contribute to the calculation. Has separate slots. | Warlock | 1-20 |
Practical Examples
Example 1: The “Sorcadin” (Paladin/Sorcerer)
Let’s take a classic build: a character with 6 levels in Paladin and 10 levels in Sorcerer.
- Paladin (Half Caster): 6 levels / 2 = 3.
- Sorcerer (Full Caster): 10 levels.
- Total Effective Caster Level: 3 + 10 = 13.
Using the multiclass spell slots calculator, you’d find a 13th-level caster has: four 1st-level, three 2nd-level, three 3rd-level, three 4th-level, two 5th-level, one 6th-level, and one 7th-level slot. The character can use these slots to cast their Paladin or Sorcerer spells, and even use high-level slots to power their Divine Smite. This demonstrates the power of using a dnd 5e spell slots calculator for powerful builds.
Example 2: The “Arcane Gish” (Fighter/Wizard/Artificer)
Consider a more complex build: 5 levels in Fighter (Eldritch Knight), 3 levels in Wizard, and 2 levels in Artificer.
- Eldritch Knight (Third Caster): 5 levels / 3 (rounded down) = 1.
- Wizard (Full Caster): 3 levels.
- Artificer (Half Caster): 2 levels / 2 (rounded up) = 1.
- Total Effective Caster Level: 1 + 3 + 1 = 5.
An effective 5th-level caster has four 1st-level, three 2nd-level, and two 3rd-level slots. It’s important to remember that while this character has 3rd-level slots, they don’t know any 3rd-level spells yet, as their individual class levels aren’t high enough. They can use these 3rd-level slots to “upcast” their lower-level spells for greater effect. This is a crucial detail that a multiclassing spellcaster tool helps clarify.
How to Use This Multiclass Spell Slots Calculator
- Enter Your Levels: Find the input fields for each class your character has levels in. Enter the level for each. If you don’t have levels in a class, leave it at 0.
- View Real-Time Results: The calculator updates automatically. The “Total Effective Caster Level” is your primary result, showing the combined power of your classes.
- Check the Spell Slot Table: The main table shows the total number of spell slots you have for each level from 1st to 9th. This is your combined pool for casting spells from any of your classes (except Warlock).
- Note Pact Magic: If you have Warlock levels, the “Warlock Pact Magic Slots” table shows your separate, short-rest-recharging slots. These can be used to cast any spell you know, and your regular slots can be used to cast Warlock spells. Explore our warlock multiclass spell slots guide for more details.
- Analyze the Chart: The bar chart provides a quick visual reference for your slot distribution, helping you see where your casting power is concentrated.
Key Factors That Affect Multiclass Spell Slot Results
The results of the multiclass spell slots calculator are influenced by several key decisions during character creation and leveling.
- Caster Type Ratio: The mix of full, half, and third casters is the biggest factor. A dip into a full caster class provides a much bigger boost to your effective caster level than a dip into a third caster.
- Level Breakpoints: Since half and third caster levels are divided, hitting certain level breakpoints is crucial. For a Paladin, reaching level 2, 4, 6 etc. provides a caster level, whereas odd levels don’t immediately grant a caster level increase. Knowing how to calculate spell slots effectively means planning these breakpoints.
- The Artificer Exception: The Artificer’s unique “round up” rule makes it slightly more potent for multiclassing at odd levels compared to a Paladin or Ranger. A 1-level dip in Artificer provides a caster level, while a 1-level dip in Paladin or Ranger provides none.
- Spells Known vs. Spell Slots: A high effective caster level grants high-level spell slots, but it does NOT grant high-level spells. You can only learn/prepare spells based on your individual class level. This is a critical distinction that affects your true power.
- Pact Magic Synergy: While Warlock levels don’t add to the main calculation, their separate, short-rest slots provide immense resource longevity. This makes them a popular choice for classes that benefit from frequent casting, like Sorcerers.
- Ignoring Non-Casters: Levels in classes without the Spellcasting feature (like Barbarian, Monk, or most Rogue/Fighter subclasses) do not contribute at all, effectively “diluting” your caster level progression in exchange for martial features. This is a primary trade-off when using a dnd spell slot table.
Frequently Asked Questions (FAQ)
1. Do Warlock spell slots combine with other classes?
No. Warlocks use the Pact Magic feature, not Spellcasting. Their slots are calculated and tracked completely separately. However, the rules do allow you to use Pact Magic slots to cast your other classes’ spells, and vice versa.
2. Why do I have spell slots for a level I don’t have spells for?
This is a common outcome of multiclassing. Your effective caster level can be high enough to grant, for example, 5th-level slots, but if your individual class levels (e.g., Wizard 4 / Cleric 5) aren’t high enough to learn 5th-level spells from either class, you won’t know any. You can use these higher-level slots to “upcast” your lower-level spells.
3. How do I calculate Artificer levels?
Artificer is a half caster, but unlike Paladins and Rangers, you round the result up. A 3rd-level Artificer contributes 2 caster levels (3 / 2 = 1.5, rounded up to 2). This multiclass spell slots calculator handles this special rule automatically.
4. Do levels in Fighter or Rogue count?
Only if you have the specific spellcasting subclass: Eldritch Knight for Fighters or Arcane Trickster for Rogues. Levels in any other Fighter or Rogue subclass do not contribute to your caster level.
5. Does my spellcasting ability modifier (e.g., Intelligence) affect my number of slots?
No. Your spellcasting ability modifier affects how many spells you can prepare (for classes like Cleric or Wizard) and the saving throw DC of your spells, but it has no impact on the number of spell slots you have. That is determined solely by your effective caster level.
6. Where can I find the official multiclassing rules?
The official rules for multiclassing and how to calculate spell slots are in the D&D 5th Edition Player’s Handbook, Chapter 6, under the “Multiclassing” section.
7. Can I use a holy symbol from my Cleric class to cast my Wizard spells?
No. Even though your spell slots are pooled, you must use a spellcasting focus appropriate for the class from which the spell originates. You would need an arcane focus (like a wand or orb) for Wizard spells and a holy symbol for Cleric spells.
8. How does this calculator compare to a simple dnd spell slot table?
A standard dnd spell slot table shows the progression for a single class. This multiclass spell slots calculator is more advanced, as it correctly combines levels from multiple different classes according to the specific multiclassing rules to give you a consolidated result.