🎲 Dice Roller

How to Use It

Rolling

Tap the dice, press the Roll button, or hit Space. Roll up to six at once.

Different dice

A normal die is a D6 — six sides, and a real cube you can spin. The others have 4, 8, 10, 12 or 20 sides, the kind used in adventure games, and each is drawn as the shape you would actually be holding. Six-sided dice show dots; the rest show numbers.

Why they look like that

Hold a real D20 up and you can only ever see ten of its twenty triangles — the other ten are round the back. That is why the drawing has ten faces. A D12 shows six of its twelve pentagons, and a D8 four of its eight triangles. Count them.

The chart

Every roll is counted, and the bars show how often each total has come up. Changing the number or kind of dice starts the tally fresh, since the totals mean something different.

Try this

Set it to 2 dice and roll thirty or forty times. The bars build into a hill, with 7 tallest. That's not luck: there are six ways to make 7 (1+6, 2+5, 3+4, 4+3, 5+2, 6+1) but only one way to make 2. Six times as many ways means it comes up about six times as often.

Average total

With two normal dice this settles near 7. With one die it settles near 3.5 — a number you can never actually roll, which surprises most people.