D&D Spell Slot Calculator
Pick a class and level to see exactly what you have — spell slots for every level, cantrips, and how many spells you know or prepare — then browse the spells you can actually choose, each with a one-line summary so you don’t have to flip the handbook. Both 2014 and 2024, off the same engine that builds full character sheets.
| 1st | 2nd | 3rd |
|---|---|---|
| 4 | 3 | 2 |
Prepared casters prepare a fixed number of spells, changed on a long rest.
Build this Wizard with a full sheet — spells picked for you →
Slots vs. spells known — what the numbers mean
- Spell slots are your daily fuel — how many spells you can cast, and at what level. They refresh on a long rest (Pact Magic on a short rest).
- Cantrips are free at-will spells that don’t use slots.
- Spells known / prepared is which spells you have ready — in the 2024 rules every class prepares a fixed number; in 2014, known casters learn a fixed list and prepared casters re-pick modifier + level each long rest.
- Upcasting — spend a higher slot to cast a lower spell more powerfully, so a big slot is never wasted.
Not sure which spells to take?
The list above is every spell your class can choose at your level, with a quick summary on each. Want it decided for you? Describe your character in a sentence and the generator builds the full sheet — an on-theme spell loadout, the right slots, save DC and attack bonus, every number computed by the engine. Multiclassing? Use the multiclass spell slot calculator.
Frequently asked questions
How many spell slots do I have?
Choose your class and level above and the table shows your slots for every spell level. Spell slots are your daily casting fuel — they come back on a long rest (a Warlock’s Pact Magic slots come back on a short rest).
How many spells can I know or prepare?
In the 2024 rules every caster prepares a fixed number of spells from its class table (shown as “Spells prepared”). In the 2014 rules it’s split: known casters (Bard, Sorcerer, Warlock, Ranger) learn a fixed number, while prepared casters (Cleric, Druid, Wizard) prepare their spellcasting modifier + their level. The calculator shows whichever is right for the edition you pick.
Which spells should I pick?
Use the spell list below the calculator — it’s filtered to exactly the spells your class can take at your level, each with a one-line summary so you don’t have to flip through a rulebook. Or describe your character in a sentence and the generator picks an on-theme loadout for you.
What’s the difference between spell slots and spells known?
Spells known/prepared is which spells you have available; spell slots is how many times per day you can cast them (and at what level). You can cast the same prepared spell repeatedly as long as you have slots, and upcast a low-level spell by spending a higher slot.
Does it support the 2024 rules (5.5e)?
Yes — toggle the ruleset at the top. The slot tables are edition-aware; the half-caster start level and rounding follow whichever edition you pick.
Is it free?
Yes — free, no login.