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How much damage your character can take before dying. If you reach 0 HP or less, you are dead.

— In-game description

Hit Points (HP) also known as Health are a game mechanic used to measure the health of a character. During combat, wounded characters lose HP. When a character gains a new level, additional HP is awarded. Should a character be reduced to 0 HP, the character dies. Needless to say, HP is an important character statistic to be monitored during play. HP can be restored using various medical items/food items such as stimpaks and wasteland omelets. HP can also be restored by sleeping or paying a doctor (both of these methods heal crippled limbs, except in hardcore mode in Fallout: New Vegas). HP can also be restored by waiting, at a rate of approximately 2 HP per 3 hours (Fallout: New Vegas).

The formulas given below generally apply only to the player character.

## Fallout and Fallout 2Edit

$\text{Initial level}=15+\text{Strength}+(2\times\text{Endurance})$

The Maximum HP increase per level is

$\left\lfloor\frac{\text{Endurance}}{2}\right\rfloor+2$

Notes:

## Fallout 3 and Fallout: New VegasEdit

### Fallout 3Edit

$\text{Initial level}=90+(\text{Endurance}\times20)+(\text{Level}\times10)$

Example: A starting Endurance of 5 at Level 1

$90+(5\times20)+(1\times10)=200~\text{Hit Points}$

### Fallout: New VegasEdit

Between Fallout 3 and New Vegas, base HPs were changed from 90 to 95. Further, fAVDHealthLevelMult was changed from 10 to 5. The result is starting characters from both games with Endurance 5 will have the same HPs (200) but New Vegas character's HPs scale slower than Fallout 3 characters.

$\text{Initial level}=95+(\text{Endurance}\times20)+(\text{Level}\times5)$

Example: A starting Endurance of 5 at Level 1

$95+(5\times20)+(1\times5)=200~\text{Hit Points}$

Max health of a player character without any chem boosts, DLC or perks and at max Endurance is 445

$95+(10\times20)+(30\times5)=445~\text{Hit Points}$

Max health of a player character with DLC, chems and perks at max Endurance is 885

$95+(10\times20)+(50\times5)+30^1+60^2+75^3+100^4+25^5+50^6=885~\text{Hit Points}$
¹ From Life Giver perk. ² From Buffout. ³ From Sierra Madre martini. 4 From Thought You Died perk (if Karma is at 1000 points). 5 From Black blood sausage. 6 From Battle brew.

## Fallout 4Edit

Fallout 4's health scaling formula:

$80 + (\text{Endurance} \times 5) + (\text{Level} - 1) \times \left ( \frac{\text{Endurance}}{2} + 2.5 \right )$
• Decimals are truncated in the PIPboy.
• Temporary Endurance bonuses do not add permanent health on level up.
• Health is retroactive on permanent Endurance increase.

This is a significant change from Fallout 3 and Fallout:New Vegas. The character starts with significantly less health and thus enemies feel much more dangerous. Thankfully, there are unlimited levels and thus an infinite amount of health a character can obtain.

## Fallout TacticsEdit

$\text{Initial level}=15+\text{Strength}+(2\times\text{Endurance})$

The Maximum HP increase per level is

$\left\lfloor\frac{\text{Endurance}}{2}\right\rfloor+3$

Notes:

• The Lifegiver perk gives +4 maximum HP per rank for each level gained.

## Fallout: Brotherhood of SteelEdit

• The Die Hard skill gives an additional +20 maximum HP (up to a maximum +200) per rank.