Dice Roller

This dice roller rolls up to 20 dice at a time, from a four-sided d4 up to a d100. Every die lands in its own box so you can read each result, and the page adds up the total, shows the average per die, and tracks your session averages as you keep rolling.

How to roll with this online dice roller

1. Choose a die type. The standard set is here: d4, d6, d8, d10, d12, d20 and d100.
2. Set how many dice to roll, anywhere from 1 to 20. Board games usually want one or two, tabletop games often want a handful of the same type.
3. Roll. Each die gets its own box, so a roll of five dice shows five separate results rather than one merged number.
4. Read the total and the average per die under the boxes.
5. Keep rolling and watch the session panel, which counts your rolls and averages your totals, or download the roll log as a text file at the end.

Every die in a roll is drawn on its own, so a d20 rolled with four d6 habits in mind still behaves like a d20. The type you pick is the type that rolls.

What your dice averages are quietly telling you

A fair d6 does not average 3, as many people guess. The faces run 1 to 6, and the true average is 3.5 per die over many rolls. Roll a single d6 a hundred times and your average per die should drift close to that figure. The session panel exists so you can watch it happen.

Two dice change the shape of the odds. A pair of d6 can total anything from 2 to 12, but 7 is the most likely result, coming up in 6 of the 36 possible pairs. A total of 2 needs double ones, a 1 in 36 shot. That is why board games built on two dice feel swingy at the edges and steady in the middle.

The d20 has its own famous number. A natural 20 lands with a 1 in 20 chance on each roll, and a natural 1 does too. Over a long session of d20 rolls, your average per die should settle near 10.5, with the dramatic results spread thin and even.

Short runs prove nothing, and that is the honest lesson in the session stats. Ten rolls can sit well above or below the true average without anything being wrong. The numbers pull toward the average slowly, over hundreds of rolls, not over one game night.

Honest limits of a digital dice roller

The scope is plain on purpose. You pick one die type and a count, and the tool rolls them. It does not read dice notation, so an expression like 2d6+3 is not parsed, and there is no modifier field. If your game adds a bonus, add it to the total yourself, the same way you would at a real table.

There is one die type per roll. A tabletop turn that needs a d20 and then two d6 takes two rolls, one of each type. That keeps every die visible and every result easy to check.

The roller is built for games, classrooms and decisions, not for gambling. Nothing here is certified for wagering. The promise is a narrow one: every face is equally likely on every roll. That makes for honest game dice, not for a licence to bet on them.

Digital dice have one quiet advantage over physical ones. A real die can carry a small bias from how it was made, while these results come from your browser’s secure random source with no worn corners and no favourite face. Your rolls are not uploaded or stored anywhere, and the log exists only if you download it.