D&D HP Calculator
Estimate a D&D 5e character's hit points. Choose your class hit die, your level, and your Constitution modifier to see average (fixed) HP along with the maximum and minimum possible.
Example: with Hit die (by class) d8 — Bard, Cleric, Druid, Monk, Rogue, Warlock · Character level 5 · Constitution modifier 2 → Average HP: 38 HP.
- Maximum HP50 HP
- Minimum HP22 HP
- HP per level after 1st+7 per level (5 avg + 2 CON)
Computed by the calculator below using its default values. Change any input to see your own numbers.
5e hit points: level 1 gives the maximum die value plus your Constitution modifier; each level after adds the die's average (rounded up) plus CON.
How 5e hit points add up
At first level a character gets the top value of the class hit die plus the Constitution modifier — a d10 fighter with a +2 CON starts at 12. Every level after that adds more hit points: either a fresh roll of the hit die or, more commonly, its fixed average, plus the CON modifier again. Hit points therefore grow steadily and predictably with level.
The Constitution modifier is added once per level, so it quietly compounds. A +3 CON is worth 30 extra hit points by level 10 — often more than a full extra die's worth — which is why frontline classes prize Constitution.
Average, maximum, and minimum
Most tables use fixed average HP: the die's average rounded up (4 for a d6, 5 for a d8, 6 for a d10, 7 for a d12) added each level. That is the Average figure here and the number you write down if you skip rolling. The Maximum assumes every die comes up at its top face, and the Minimum assumes the worst rolls after the guaranteed level-1 maximum.
Rolling puts your real total somewhere between the minimum and maximum. Seeing the spread helps you judge how risky rolling is compared with taking the steady average.
How it’s calculated
HP = (hit die max + CON) at level 1, then + (per-level value + CON) for each level after. Average uses the fixed per-level value = die/2 + 1 (d6→4, d8→5, d10→6, d12→7). Maximum uses the full die each level; Minimum uses 1 per die after level 1. The minimum is floored at 1 HP per level per the rules.
A single class using fixed average HP, the most common table convention. Rolling varies the result; feats such as Tough, the Hill Dwarf trait, and multiclassing add hit points not modeled here.
Hit die by class
| Hit die | Classes | Avg HP per level after 1st |
|---|---|---|
| d6 | Sorcerer, Wizard | 4 |
| d8 | Bard, Cleric, Druid, Monk, Rogue, Warlock | 5 |
| d10 | Fighter, Paladin, Ranger, Artificer | 6 |
| d12 | Barbarian | 7 |
D&D 5e Player's Handbook hit dice; fixed average per level = die/2 + 1, rounded up.
Common mistakes
- Rolling for level 1 — a 5e character always starts with the maximum hit die value plus CON.
- Adding the Constitution modifier only once; it applies to every level, including the first.
- Using the Constitution score instead of its modifier, which is (score − 10) ÷ 2 rounded down.
- Mixing rolled and fixed-average HP across levels; pick one method and keep it for the whole character.
Frequently asked questions
How are hit points calculated in D&D 5e?
Level 1 gives the maximum hit die plus your Constitution modifier. Each later level adds the die's average (rounded up) or a roll, plus the CON modifier again. Add them up for your total.
What is the average HP per level?
The fixed average is the die halved plus one: 4 for a d6, 5 for a d8, 6 for a d10, and 7 for a d12. You add your Constitution modifier on top each level.
Should I roll or take the average for hit points?
Average gives a steady, reliable total and is the default at many tables. Rolling can land higher or lower; this tool shows the maximum and minimum so you can see the risk.
Do I use my Constitution score or modifier?
The modifier. It is (your Constitution score minus 10) divided by 2, rounded down — so a 14 gives a +2 modifier that is added to every level's hit points.
What happens to my HP if my Constitution increases?
Raising your Constitution modifier adds hit points retroactively for every level you have, since CON is counted once per level. A +1 to the modifier at level 8 adds 8 HP.