Dice Roller
Roll any dice notation, with modifiers and totals.
Enter your values
Results update instantly as you type — no submit needed.
Results
- Notation
- 3d6+2
- This roll
- 4 + 3 + 3 + 2 = 12
- Average result
- 12.5
- Minimum / maximum
- 5 / 20
- Chance of maximum
- 0.463%
Quick answer
The average of a fair d-sided die is (d + 1) ÷ 2, so 3d6 averages 10.5 before modifiers.
Mean = n × (d + 1) ÷ 2 + modifier
How to use the Dice Roller
- 1Enter how many dice to roll.
- 2Enter the number of sides.
- 3Add a modifier if your rules need one.
Frequently asked questions
Why do 3d6 results cluster?
Sums of multiple dice form a bell curve — 10 and 11 are six times more likely than 3 or 18.
What is the average of a d20?
10.5. Any single die averages (sides + 1) ÷ 2.