A worked example
Three d6, success on 5 or 6, at least one success gives 70.370%.
Find the chance of at least k successes across a fair dice pool.
Loading your local workspace…
One die succeeds on faces ≥ threshold. A binomial recurrence combines independent successes.
Three d6, success on 5 or 6, at least one success gives 70.370%.
No exploding dice, rerolls or game-specific rules. Threshold may be sides + 1 to model no possible success.
No. Processing runs locally in your browser. The host still receives normal requests for website pages and assets.
Use the download controls for the current tool or print from your browser. Your valid edits autosave in this browser. Export a JSON backup to move devices; see the privacy page.
No sign-up, paid API or subscription is required. Both languages use the same tools. English always opens at the root address.