Average Damage Formula:
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Average damage in Dungeons & Dragons represents the expected damage output of an attack or spell. It's calculated by adding the average roll of the damage dice to the relevant ability modifier or other bonuses.
The calculator uses the simple formula:
Where:
Explanation: This gives players and DMs a quick way to estimate damage output for balancing encounters or comparing weapons.
Details: Knowing average damage helps players make tactical decisions and allows DMs to create balanced encounters that are challenging but fair.
Tips: Enter the average of your damage dice (e.g., 3.5 for d6, 4.5 for d8, etc.) and your total damage modifier. The calculator will sum them to give your average damage.
Q1: How do I calculate dice average?
A: For any die, average = (max roll + 1) / 2. So d6 = (6+1)/2 = 3.5, d8 = 4.5, etc.
Q2: What counts as the Mod?
A: This is typically your ability modifier (STR for melee, DEX for ranged/finesse) plus any other bonuses like magic weapon bonuses.
Q3: Should I use this for critical hits?
A: No, for critical hits you'd double the dice (but not the modifier) before calculating average.
Q4: Does this account for hit chance?
A: No, this is raw damage. For expected damage including hit chance, multiply by your probability to hit.
Q5: How does this work for multiple attacks?
A: Multiply the average damage by the number of attacks to get total average damage per round.