There is a lot of confusion regarding how to calculate the number of spell slots you get when you multiclass. This is my attempt at explaining it.

Spells Known and Prepared:
You determine what spells you know and can prepare for each class individually, as if you were a single-classed member of that class.

5e multiclass spell slots calculator downloadMulticlass

5e Multiclass Spell Slots Calculator List

Spell Slots from the “Spellcasting” class feature:
• Add together all your levels in the bard, cleric, druid, sorcerer, and wizard classes;
• If you have one or more levels in the artificer class, add half these levels (rounded up);
• If you have two or more levels in the paladin class, add half these levels (rounded down);
• If you have two or more levels in the ranger class, add half these levels (rounded down);
• If you have three or more levels in the fighter (eldritch knight) class, add one third these levels (rounded down);
• If you have three or more levels in the rogue (arcane trickster) class, add one third these levels (rounded down);
Use this total to determine your spell slots by consulting the “Multiclass Spellcaster: Spell Slots Per Spell Level” table (PHB p. 165).

5e Multiclass Spell Slot Calculator

Note regarding Warlocks:
Warlocks do not have the “Spellcasting” class feature. Their spells come from the “Pact Magic” class feature. You track warlock spell slots separately from any class with the “spellcasting” class feature. However, you can cast any spell that is available for you to cast form any class using any spell slot of the appropriate level on your list of available warlock spell slots.

5e Multiclass Spell Slots Calculator Free

D&D 5e Multiclassing Spell Slot Calculator This calculator uses the multiclassing rules found in the 5th Edition Player's Handbook, with the assumption that artificers will be treated as half-casters, like paladins and rangers. Use this total to determine your spell slots by consulting the “Multiclass Spellcaster: Spell Slots Per Spell Level” table (PHB p. Note regarding Warlocks: Warlocks do not have the “Spellcasting” class feature. Their spells come from the “Pact Magic” class feature. You determine your available spell slots by adding together all your levels in the bard, cleric, druid, sorcerer, and wizard classes, and half your levels (rounded down) in the paladin and ranger classes. Use this total to determine your spell slots by consulting the Multiclass Spellcaster table. Essentially, you will have spell slots in your Warlock class AND spell slots in your other class(es). You can interchange these spell slots: use Warlock spell slots for spells you learned from another class, and vice versa. Example: Expend a 2nd level spell slot from your Warlock Pact Magic to cast a 2nd level Wizard spell you know.