Custom Dice Roller Calculator

Your details

Select a standard polyhedral die or enter a custom number of sides below.
How many dice to roll at once (1 to 20).
A fixed number added to (or subtracted from) the total. Enter a negative value to subtract.
Expected value
7

The long-run average total you would get across many rolls

Standard deviation2.42
Minimum possible2
Maximum possible12
Range10
Variance5.83
Dice notation2d6
Most likely total7
Mode probability16.67%
Minimum2
Expected value7
Maximum12

Expected total: 7.00 (notation: 2d6)

  • Rolling 2d6 will average 7.00 per roll over the long run.
  • About 68% of rolls will land between 4.6 and 9.4 (one standard deviation either side).
  • The total can never fall below 2 or exceed 12.

Next stepTwo D6s are the classic board-game dice pair. The most likely total is 7, which occurs 6 times out of 36 possible outcomes (a 16.7% chance).

 = Powered by OnlyCalculators