Catan Dice Stats
Log every 2d6 roll of your board game night and watch a live bar chart build against the true expected curve, so you can finally prove whether 8 really never shows up.
Built by the AbraCalc team
How to play
- Tap Roll 2d6 each time it's your turn to roll — both dice faces and the running total are shown instantly.
- Watch the bar chart below grow with each roll, one bar per possible sum from 2 through 12.
- Compare the teal actual-count bars against the amber expected-frequency line to see how close the night's rolls are to true probability.
- Tap Reset Stats to clear the tally and chart when starting a new game.
Tap Roll 2d6 and the tool rolls two dice, shows both faces, and immediately adds the total to a running tally. A live bar chart builds below the dice, one bar per possible sum from 2 to 12, with each bar's height reflecting how many times that number has actually come up. A thin marker line overlays each bar showing the true expected frequency for that sum based on real 2d6 probability, so as the rolls pile up you can watch the actual bars converge toward — or stubbornly diverge from — the mathematical curve. It's built to settle the classic board game argument about whether a particular number is cursed for the night, with every single roll logged the instant you tap, no matter how fast you're tapping through a stack of turns. Reset Stats clears the tally and chart to start tracking a brand new game.
Frequently asked questions
- Why does the expected line move as I roll more?
- The expected marker scales to the total number of rolls logged so far, since the true 2d6 probability curve only becomes meaningful to compare once enough rolls have happened — it recalculates after every single roll.
- Does every tap of Roll 2d6 count, even if I tap quickly?
- Yes — rolling and logging is the entire purpose of this tool, so there is no cooldown or debounce on the Roll button; every tap produces a new roll and is added to the tally immediately.
- Why is 7 usually the tallest bar?
- With two six-sided dice there are 36 equally likely combinations, and 6 of them add up to 7 versus only 1 combination each for 2 or 12, which is exactly the math the expected-frequency line is drawn from.