Calculate Health in 5e

In Dungeons & Dragons 5th Edition (5e), character health is determined by hit points (HP), hit dice, and constitution modifier. This calculator helps you determine these values for your character or monsters.

How to Calculate Health in 5e

Character health in 5e is primarily measured by hit points (HP). The base HP is determined by the character's hit dice, while the constitution modifier affects both the base HP and the amount of HP gained when leveling up.

Remember that hit points represent a combination of physical and mental durability, not just physical health. Temporary HP can also be gained from certain spells and effects.

Key Components of Health Calculation

Hit Dice (HD): Determines base HP and HP gained per level
Constitution Modifier (CON): Affects both base HP and level-up HP
Level: Determines how many times to apply the level-up formula
Hit Point Maximum (HP Max): The total HP at a given level

Calculation Steps

Determine your character's hit dice based on class
Calculate your constitution modifier
Calculate base HP using the hit dice and CON modifier
Calculate HP gained per level using the same formula
Sum all HP values to get the total HP maximum

Health Formula

The primary formula for calculating hit points in 5e is:

Base HP = Hit Dice + (Hit Dice × Constitution Modifier)

HP per Level = Hit Dice + (Hit Dice × Constitution Modifier)

Total HP = Base HP + (HP per Level × (Level - 1))

Where:

Hit Dice = The die type for your character class (e.g., d8 for fighters)
Constitution Modifier = (Constitution Score - 10) ÷ 2
Level = Current character level

For monsters, the calculation is slightly different as they don't gain HP per level in the same way as player characters.

Hit Dice Calculation

Each class in 5e has a specific hit die that determines the base HP and the amount of HP gained when leveling up. Common hit dice include:

Class	Hit Die
Barbarian	d12
Fighter	d10
Paladin	d10
Ranger	d10
Cleric	d8
Druid	d8
Monk	d8
Rogue	d8
Warlock	d8
Bard	d8
Sorcerer	d6
Wizard	d6

For monsters, the hit dice are typically listed in their stat block, and you calculate HP by rolling the hit dice and adding the constitution modifier for each die.

Hit Point Maximum

The hit point maximum is the total number of hit points a character or monster has at a given level. For player characters, this is calculated by:

HP Max = Base HP + (HP per Level × (Level - 1))

Where Base HP is calculated as shown in the health formula section, and HP per Level is the same as the base HP calculation.

For monsters, the hit point maximum is typically listed in their stat block, but you can also calculate it by rolling the hit dice and adding the constitution modifier for each die.

Health Calculation Examples

Example 1: Level 5 Fighter

A fighter has a hit die of d10 and a constitution score of 16 (modifier +3).

Base HP = 1d10 + (1d10 × 3) = 10 + 30 = 40

HP per Level = 1d10 + (1d10 × 3) = 10 + 30 = 40

Total HP = 40 + (40 × (5 - 1)) = 40 + 160 = 200

Example 2: Level 3 Cleric

A cleric has a hit die of d8 and a constitution score of 14 (modifier +2).

Base HP = 1d8 + (1d8 × 2) = 8 + 16 = 24

HP per Level = 1d8 + (1d8 × 2) = 8 + 16 = 24

Total HP = 24 + (24 × (3 - 1)) = 24 + 48 = 72

FAQ

How do I calculate hit points for a monster?

For monsters, you typically use the hit points listed in their stat block. If you want to calculate them manually, you roll the hit dice listed and add the constitution modifier for each die.

What happens if my constitution score changes?

If your constitution score changes, you should recalculate your hit points using the new constitution modifier. This typically happens when you gain or lose levels, or when you use abilities that modify your constitution score.

Can I have temporary hit points?

Yes, temporary hit points are separate from your regular hit points and can be gained from spells like False Life or Shield. Temporary hit points are lost first when you take damage.

How do I calculate hit points for a multiclass character?

For multiclass characters, you use the hit die of your primary class for your base HP and level-up HP. The hit dice of your other classes contribute to your hit points at higher levels.