Equal to target
Use equal to target when only one exact total matters, such as rolling exactly 20 on a d20 or exactly 7 on two six-sided dice.
Dice math
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Dial in tabletop dice odds with polished probability cards, visual progress, and simple explanations.
Probability controls
Common tabletop examples
58.33%
Probability
1 in 1.71
21 of 36 possible outcomes match.
With 2 d6 dice, the chance to roll at least 7 is 58.33%. That means 21 of 36 possible outcomes match.
Player notes
Understanding dice probability
The probability calculator turns dice pools into plain percentages. It is useful when players want to compare a risky move, a game master wants to tune a challenge, or a teacher wants a quick example of outcome distributions.
At least target
Use at least target for most tabletop checks, where meeting or beating a difficulty number succeeds. Modifiers are included before the result is compared to the target.
At most target
Use at most target for roll-under systems, failure checks, or house rules where lower totals are better than higher totals.
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Calculate equal, at least, and at most odds for dice pools with plain-English explanations.
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