D&D Leveling Guide (1–20)
What actually changes as a D&D 5e character climbs from level 1 to 20 — the proficiency bonus, ability score improvements, the four tiers of play, and the power spikes that matter. It is the same structure in the 2014 and 2024 rules. And when you want to see a build at any level, the generator rolls a complete sheet in seconds.
How leveling works in 5e
You gain levels through experience points or "milestone" leveling (the DM decides which). Each level you gain hit points and, usually, a new class feature. On top of that, three things scale on a fixed schedule no matter your class: your proficiency bonus, your ability scores (via Ability Score Improvements), and, for spellcasters, the spell levels you can reach. Those three are the backbone of the table below.
Proficiency bonus by level
Your proficiency bonus is added to attack rolls, spell save DCs, and any skill or save you are proficient in. It is the same for every class:
- +2 — levels 1–4
- +3 — levels 5–8
- +4 — levels 9–12
- +5 — levels 13–16
- +6 — levels 17–20
The level-by-level table
Proficiency bonus, when you get an Ability Score Improvement (ASI), and the headline milestone at each level. Exact features vary by class — generate one to see the specifics.
Tier 1 — Local Heroes · Levels 1–4
Fragile but finding your feet. You menace goblins and bandits, and one bad fight can end you.
| Lvl | Prof. | ASI | Highlight |
|---|---|---|---|
| 1 | +2 | — | Class features begin; full casters cast 1st-level spells. |
| 2 | +2 | — | A second class feature for most classes. |
| 3 | +2 | — | Subclass comes online (level 3 for all classes in the 2024 rules); full casters reach 2nd-level spells. |
| 4 | +2 | ASI | First Ability Score Improvement (or a feat). |
Tier 2 — Heroes of the Realm · Levels 5–10
The sweet spot for most campaigns. You stop being squishy and start feeling heroic.
| Lvl | Prof. | ASI | Highlight |
|---|---|---|---|
| 5 | +3 | — | The biggest jump in the game: martials gain Extra Attack, full casters gain 3rd-level spells (Fireball, Counterspell), and proficiency rises to +3. |
| 6 | +3 | — | A subclass or class feature; Fighters get a bonus ASI here. |
| 7 | +3 | — | Full casters reach 4th-level spells. |
| 8 | +3 | ASI | Ability Score Improvement. |
| 9 | +4 | — | Full casters reach 5th-level spells. |
| 10 | +4 | — | A subclass feature; Rogues get a bonus ASI here. |
Tier 3 — Masters of the Realm · Levels 11–16
Genuinely powerful. High-level spells and signature class features reshape encounters.
| Lvl | Prof. | ASI | Highlight |
|---|---|---|---|
| 11 | +4 | — | Full casters reach 6th-level spells; Fighters gain a third attack. |
| 12 | +4 | ASI | Ability Score Improvement. |
| 13 | +5 | — | Full casters reach 7th-level spells. |
| 14 | +5 | — | A subclass feature; Fighters get a bonus ASI here. |
| 15 | +5 | — | Full casters reach 8th-level spells. |
| 16 | +5 | ASI | Ability Score Improvement. |
Tier 4 — Masters of the World · Levels 17–20
Legendary. World-shaking magic and class capstones. Rarely played, always memorable.
| Lvl | Prof. | ASI | Highlight |
|---|---|---|---|
| 17 | +6 | — | Full casters reach 9th-level spells (Wish, Meteor Swarm). |
| 18 | +6 | — | A major class feature for most classes. |
| 19 | +6 | ASI | Final standard Ability Score Improvement. |
| 20 | +6 | — | Class capstone — your character’s defining high-level ability. |
The power spikes that matter
Not every level feels equal. Level 5 is the famous one: a second attack for martials, Fireball-tier spells for full casters, and proficiency at +3. Level 11 brings 6th-level spells and a Fighter's third attack. Level 17 opens 9th-level magic like Wish. And level 20 is your class capstone. If you are picking a level for a one-shot, 5 and 11 are the crowd-pleasers.
What level should you start at?
Most campaigns begin at level 1 (you grow up together) or level 3 (your subclass is chosen, so the character already feels like itself). One-shots often run at 5 for the power spike. Whatever you need, the character creator builds a complete, rules-accurate sheet at any level 1–20 — stats, spells, gear, a backstory, and a portrait — from a single sentence.
More tools
- Character creator — build at any level, 1–20.
- Character sheet — printable, or auto-filled from a build.
- Character ideas — 35+ concepts to build in one click.
- 2024 (5.5e) generator — the new ruleset.
Frequently asked questions
What do you get when you level up in D&D 5e?
More hit points, new class features, and at set levels a higher proficiency bonus and ability score increases. Spellcasters also unlock higher-level spells as they go.
When do you get Ability Score Improvements?
At levels 4, 8, 12, 16, and 19 for most classes. Fighters get extra ones at levels 6 and 14, and Rogues get an extra at level 10. Each ASI is +2 to one ability or +1 to two (or a feat).
What is the biggest power spike?
Level 5. Martial classes gain Extra Attack, full casters gain 3rd-level spells like Fireball, and your proficiency bonus rises to +3. It is the level most campaigns are built around.
What level should I start a character at?
Most tables start at level 1 or level 3. Level 3 is popular because subclasses are online and the character feels complete. You can generate a character at any level from 1 to 20 here.
Does this cover the 2024 rules?
Yes. The core leveling structure — proficiency bonus, ASIs at 4/8/12/16/19, the four tiers, spell progression — is the same in the 2014 and 2024 (5.5e) rules. The generator supports both editions.
How high can a character go?
Level 20 is the cap, where you get your class capstone. The generator builds a complete, rules-accurate sheet at any level 1–20.
Is it free?
Yes — free, no login.