DnD 5e Hit Point Calculator
Use this tool to calculate your character’s maximum hit points based on class hit die, level, Constitution modifier, and level-up method (fixed average or manual rolls).
How This DnD Hit Point Calculator Works
This DnD hit point calculator is designed for Dungeons & Dragons 5e and helps you quickly compute your character’s maximum HP at any level. Instead of doing each level by hand, you can enter your class hit die, level, Constitution modifier, and bonuses to get a complete breakdown.
It supports the two most common methods for leveling hit points:
- Fixed Average: You take the average listed by 5e rules each level.
- Manual Rolls: You enter your individual hit die rolls for each level after 1.
Core 5e HP Formula
In standard 5e, your hit points are based on your class hit die and Constitution modifier:
- Level 1 HP: Max hit die + Constitution modifier
- Later levels: Either roll hit die (or take average) + Constitution modifier
- Minimum per level gain: At least 1 HP per level
This calculator also includes two practical extras:
- Bonus HP per level (for effects like Tough)
- Flat HP bonus for one-time adjustments
Hit Die Reference by Class (5e)
- d6: Wizard, Sorcerer
- d8: Bard, Cleric, Druid, Monk, Rogue, Warlock
- d10: Fighter, Paladin, Ranger
- d12: Barbarian
Step-by-Step Usage
1) Pick your class hit die
Select the hit die matching your class (or current class if your DM uses a custom approach).
2) Enter level and Constitution modifier
Use your current level and active Constitution modifier. If your Constitution score changed during the campaign, apply your table’s ruling.
3) Choose leveling method
Select fixed average for quick and consistent results, or manual rolls if your group rolls HP each level.
4) Add bonuses
If you have extra maximum HP from feats, boons, or class features, add them using per-level and flat inputs.
5) Calculate
Click the button to get total max HP plus a breakdown showing exactly how the value was built.
Worked Examples
Example A: Level 5 Fighter, fixed average
A level 5 Fighter (d10) with +3 Constitution and no other bonuses:
- Level 1: 10 + 3 = 13
- Levels 2–5: average d10 is 6, so each level = 6 + 3 = 9
- 4 additional levels × 9 = 36
- Total max HP = 13 + 36 = 49
Example B: Level 7 Cleric with Tough feat
A level 7 Cleric (d8), +2 Constitution, fixed average, Tough feat (+2 per level):
- Level 1: (8 + 2) + 2 = 12
- Levels 2–7: average d8 is 5, each level = (5 + 2) + 2 = 9
- 6 additional levels × 9 = 54
- Total max HP = 12 + 54 = 66
Common HP Calculation Mistakes
- Forgetting to add Constitution modifier at every level.
- Using the wrong average value (5e average is usually shown as half die + 1).
- Forgetting bonuses like Tough that scale by level.
- Mixing temporary hit points into max HP (they are separate).
- Not checking your table’s house rules for level 1 HP.
FAQ
Does this support multiclass characters?
This version is built for a single hit die progression. For multiclass builds, calculate each class portion separately and combine totals.
Does this include temporary hit points?
No. Temporary hit points are not part of maximum HP and should be tracked separately during play.
Can I use this as a general 5e HP calculator?
Yes. This is effectively a DnD 5e HP calculator for standard class progression, including both fixed and rolled leveling methods.
Final Notes
If you wanted a fast and accurate dnd hp calculator, this page gives you practical inputs and transparent math. Save your build values, update level when you advance, and you’ll always have reliable max HP for your next session.