Dice Histogram

Roll live dice, stack the totals into a histogram, and compare the data to the theoretical curve in real time.

Dice per roll · 2 dice

Rolls per run · 100 rolls

Show expected curve

Roll the dice to see them tumble.

Slide Dice per roll to choose how many cubes tumble each turn (1–10).
Pick how many rolls happen per run. Short runs are easy to watch; long runs zoom by faster.
Press Play to toss them. Real dice land in the tray and the bars grow with every total.
Tap Pause if you want to predict the next bar height, then hit Play again to test your guess.
Use Reset to clear the tray, chart, and stats when you are ready for a brand-new experiment.

You are tracking how often each total shows up across all of your rolls.

Rolling more dice makes middle numbers (like 6 or 7) appear more often because there are many ways to build them.
Running hundreds of rolls makes the bars smoother, while tiny runs stay wiggly and random.
The aqua curve shows what perfect math predicts. Compare it to your live bars and talk about any differences.

Make it a game: guess the tallest bar before a run, or race a friend to see whose data hugs the curve the closest.