| Derived statistic
| Description
| Derived from
| Initial value
|
| Action Points
| Primarily used for VATS; now also used for sprinting, holding your breath while sniping, gun bashing, and power attacks.
| Agility
| 60 + AGL*10
|
| Carry Weight
| The amount of weight you can carry before becoming overencumbered.
| Strength
| 200 + STR*10
|
| Damage Resistance
| A number used to determine how much ballistic damage you can negate.
| Perks, equipment
|
|
| Energy Resistance
| A number used to determine how much energy damage you can negate.
| Perks, equipment
|
|
| Poison Resistance
| A number used to determine how much poison damage you can negate.
| Perks, equipment
|
|
| Radiation Resistance
| A number used to determine how much radiation damage and rads you can negate.
| Perks, equipment
|
|
| Hit Points
| How much damage you can sustain before death; reduced by radiation poisoning.
| Endurance, perks
| Base: 80 + END*5
Per level: 2.5 + END/2
|
| Melee Damage
| Bonus damage you do in close combat; unlike previous Fallout games, this also includes unarmed.
| Strength
| 10% bonus for each point of STR
|
| Experience Modifier
| A bonus to all experience earned.
| Intelligence
| 3% bonus for each point of INT
|
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