Dice roller @ owlness.org

Roll equation:

Roll

Roll dice, each with faces Roll

Roll equation

Enter your desired roll into the equation field just as you would write it on paper. Basic math operators (+, -, *, /) as well as parenthesis for grouping are allowed. Dice rolls themselves are entered in the traditional format of {num}d{faces}. Here is one example of a valid roll equation:

(3d6 + 2) * 4 + 1d4

Note that you may enter in dice with any arbitrary number of faces. Want to roll that d1000? Have at it.

Critical rolls

Add a critical range to a roll appending it within pair of square braces. For example, this roll has a critical range of 17 to 20:

1d20[17-20]

The range may also be specified as a single number which will be interpreted as its lower bound. The above roll could have also be written as:

1d20[17]

When a die within the roll falls within the critical range the overall roll will be flagged as a critical success in the results display.

If the critical roll declaration contains two ranges separated by a slash then the first will be used for flagging the roll as a critical failure. When the critical failure range is a single number then it will be taken as the upper bound. The following roll will be flagged as a critical success on a 17 or greater and a critical failure on a 1:

1d20[1/17]

Exploding rolls

Rolls may be declared as exploding. Any die within an exploding roll that achieves its maximum possible value will be rolled again and added to the result. If the exploding roll itself achieves its maximum value then it will be rolled again and added, and so on. To designate a roll as exploding append a suffix of 'e':

1d6e

Fudge/Fate rolls

Use the letter 'F' as a face value to roll a set of Fudge/Fate dice:

4dF

Batch roller

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