D&D Spell Slot Tracker Guide: Management, Recovery & Multiclass Rules
Quick Answer
- *D&D 5e spell slots are your daily “fuel” for casting spells — each non-cantrip spell costs one slot of the spell's level or higher.
- *Full casters (Wizard, Cleric, Sorcerer, Bard, Druid) reach a maximum of 22 spell slots at level 20, including one each of 6th through 9th level.
- *All spell slots recharge on a long rest. Warlocks are the exception — their Pact Magic slots recharge on a short rest.
- *According to D&D Beyond usage data, the most-cast spell across all levels is Healing Word, followed by Shield and Cure Wounds — players prioritize defensive slot usage.
- *Multiclass spellcasters use a combined caster level table for slot calculation, with full/half/third caster levels added together before looking up slots.
How Spell Slots Work in D&D 5e
Spell slots are the resource system that limits how many spells you can cast between rests. Every leveled spell (1st level and above) requires a spell slot to cast. Cantrips — your 0th-level spells — are unlimited and never consume a slot.
Key rules:
- You can cast a spell using a slot of its level or any higher level. A 1st-level spell can be cast with a 3rd-level slot.
- Many spells gain extra effects when cast at higher levels (“upcasting”). Cure Wounds heals an additional 1d8 per level above 1st.
- Once a slot is used, it's gone until you rest. Managing your remaining slots across an adventuring day is a core part of playing a caster.
- You can only cast one leveled spell per turn. If you cast a bonus action spell, the only other spell you can cast that turn is a cantrip with a casting time of 1 action.
Full Caster Spell Slot Table
Full casters (Wizard, Cleric, Druid, Sorcerer, Bard) share the same spell slot progression. Here are the key breakpoints:
| Level | 1st | 2nd | 3rd | 4th | 5th | 6th | 7th | 8th | 9th | Total |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | — | — | — | — | — | — | — | — | 2 |
| 3 | 4 | 2 | — | — | — | — | — | — | — | 6 |
| 5 | 4 | 3 | 2 | — | — | — | — | — | — | 9 |
| 7 | 4 | 3 | 3 | 1 | — | — | — | — | — | 11 |
| 9 | 4 | 3 | 3 | 3 | 1 | — | — | — | — | 14 |
| 11 | 4 | 3 | 3 | 3 | 2 | 1 | — | — | — | 16 |
| 13 | 4 | 3 | 3 | 3 | 2 | 1 | 1 | — | — | 17 |
| 15 | 4 | 3 | 3 | 3 | 2 | 1 | 1 | 1 | — | 18 |
| 17 | 4 | 3 | 3 | 3 | 2 | 1 | 1 | 1 | 1 | 19 |
| 20 | 4 | 3 | 3 | 3 | 3 | 2 | 2 | 1 | 1 | 22 |
Notice that 6th-level and higher slots are capped at 1–2 each. You only get a single 9th-level slot even at level 20. This makes spells like Wish and Meteor Swarm truly once-per-day abilities.
Half-Casters and Third-Casters
Not every spellcasting class gets full slot progression:
- Half-casters (Paladin, Ranger): Gain spell slots at half the rate. They don't get 1st-level slots until class level 2, and their maximum spell level is 5th (at level 17). A 10th-level Paladin has the same slots as a 5th-level Wizard.
- Third-casters (Eldritch Knight Fighter, Arcane Trickster Rogue): Gain slots at one-third the rate. They don't get 1st-level slots until class level 3, and cap at 4th-level spells at class level 19.
Warlock Pact Magic
Warlocks use a completely different system called Pact Magic:
| Warlock Level | Slots | Slot Level |
|---|---|---|
| 1 | 1 | 1st |
| 2 | 2 | 1st |
| 3–4 | 2 | 2nd |
| 5–6 | 2 | 3rd |
| 7–8 | 2 | 4th |
| 9–10 | 2 | 5th |
| 11–16 | 3 | 5th |
| 17–20 | 4 | 5th |
The trade-off: Warlocks get far fewer slots, but they're always at the highest available level and recharge on a short rest. In a 6–8 encounter adventuring day with 2 short rests, a 5th-level Warlock effectively gets 6 total 3rd-level slots — more high-level casting than any full caster at the same level.
To offset their limited slots, Warlocks also get Mystic Arcanumat levels 11, 13, 15, and 17 — one free casting each of a 6th, 7th, 8th, and 9th-level spell per long rest, separate from Pact Magic.
Multiclass Spell Slot Calculation
Multiclass casters combine their levels to determine spell slots using a specific formula:
- Full caster levels (Wizard, Cleric, Druid, Sorcerer, Bard): Count at full value
- Half-caster levels (Paladin, Ranger): Divide by 2, round down
- Third-caster levels (Eldritch Knight, Arcane Trickster): Divide by 3, round down
- Warlock levels: Do NOT add — Pact Magic is tracked separately
Example: A character with 5 levels of Wizard and 4 levels of Paladin has an effective caster level of 5 + 2 (4÷2) = 7. They look up level 7 on the full caster table: 4/3/3/1 slots.
Important: your multiclass slot progression may give you slots of a level higher than any spell you actually know. A Wizard 3/Cleric 3 (caster level 6) has 3rd-level slots, but neither class has learned 3rd-level spells yet. Those slots can still be used to upcast lower-level spells.
Spell Slot Recovery Options
Several class features let you recover slots without a long rest:
| Feature | Class | Recovery | Frequency |
|---|---|---|---|
| Arcane Recovery | Wizard | Slots totaling up to half wizard level (rounded up) | Once per long rest (during short rest) |
| Natural Recovery | Druid (Land) | Slots totaling up to half druid level (rounded up) | Once per long rest (during short rest) |
| Font of Magic | Sorcerer | Convert sorcery points to slots (cost varies by level) | Bonus action, limited by sorcery points |
| Harness Divine Power | Cleric/Paladin (optional) | One slot up to half proficiency bonus (rounded up) | Proficiency bonus times per long rest |
| Pact Magic | Warlock | All Pact Magic slots | Every short rest |
Arcane Recovery is particularly efficient. A 5th-level Wizard can recover one 2nd-level slot and one 1st-level slot (total: 3 slot levels, half of 5 rounded up) during a short rest. That's an extra Shield and Misty Step per day — often the difference between surviving a deadly encounter and going down.
Spell Slot Management Strategies
The 50% Rule
A common guideline from experienced players: try to have at least 50% of your spell slots remaining at the halfway point of an adventuring day. If you're burning through slots in the first encounter, you'll be reduced to cantrips for the rest of the day.
Cantrip First, Slot Second
Cantrips scale at levels 5, 11, and 17. A level 5 Fire Bolt deals 2d10 (11 average) — comparable to a 1st-level Chromatic Orb (3d8 = 13.5 average). Save your 1st-level slots for Shield, Absorb Elements, and Healing Word rather than marginal damage increases.
Concentration is Your Most Valuable Resource
You can only maintain one concentration spell at a time. Bless, Spirit Guardians, Haste, and many of the strongest spells in the game require concentration. Casting a new concentration spell wastes the slot spent on your current one. Pick your concentration spell first, then use non-concentration spells and cantrips for the rest of the fight.
Know Your Ritual Spells
Ritual casting takes 10 extra minutes but costs no spell slot. Detect Magic, Identify, Comprehend Languages, Speak with Animals, and Tiny Hut are all rituals. Casting these as rituals saves multiple slots per day. Wizards can ritual cast any ritual spell in their spellbook without even preparing it.
Upcast Strategically
Not all upcasts are equal. Healing Word at 2nd level heals only 1d4 more than at 1st level (average 2.5 HP). That's a terrible use of a 2nd-level slot. But Spiritual Weapon at 4th level adds 1d8 extra damage on every hitfor the entire duration — excellent value.
Track your spell slots in real time
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Frequently Asked Questions
How many spell slots does a D&D 5e caster have?
It depends on class and level. A 5th-level Wizard has four 1st-level slots, three 2nd-level slots, and two 3rd-level slots (9 total). A 20th-level full caster has 22 spell slots across levels 1–9, including one each of 6th, 7th, 8th, and 9th level. Half-casters like Paladins and Rangers get slots at half the rate.
How do you recover spell slots in D&D 5e?
All spell slots recharge on a long rest (8 hours). Some classes have additional recovery: Wizards use Arcane Recovery (once per long rest during a short rest), Druids of the Land get Natural Recovery, and Warlocks recover all Pact Magic slots on every short rest. Sorcerers can convert sorcery points to slots as a bonus action.
How do multiclass spell slots work in D&D 5e?
Add together your effective caster levels: full casters contribute their full class level, half-casters contribute half (rounded down), and third-casters contribute one-third (rounded down). Look up the combined total on the Multiclass Spellcaster table for your slots. Warlock Pact Magic is tracked separately and does not combine.
What is the difference between spell slots and Pact Magic?
Pact Magic (Warlock) gives fewer slots (1–4) but all slots are the same high level (up to 5th) and recharge on a short rest. Regular spell slots come in varying levels, you get more of them, but they only recharge on a long rest. When multiclassing, both types of slots can be used to cast any of your known spells, but they recover independently.
Can you cast a spell at a higher level using a higher spell slot?
Yes, this is called upcasting. Many spells gain extra effects when cast using a higher-level slot. Cure Wounds heals an extra 1d8 per slot level above 1st, and Fireball deals an extra 1d6 per slot level above 3rd. Not all spells benefit from upcasting — check each spell's description for “At Higher Levels” text.