12d6 = 42
Rolling 12 dice, 144840476 of the 2,176,782,336 outcomes add up to 42 — a 6.65% chance. It is the most likely sum with this many dice.
Probability
6.65%
Ways for each sum
- Ways to roll it
- 144,840,476 / 2,176,782,336
- Probability
- 6.65%
- One roll in
- 15.03
- This or higher
- 53.33%
- This or lower
- 53.33%
- Average sum
- 42
Nearby sums
Rolls with similar odds
A different number of dice can land on much the same chance.
How to read this
- Two dice do not land evenly. There are six ways to make 7 and only one way to make 2.
- The more dice, the tighter the middle. With six dice almost everything lands near 21, while 6 or 36 turns up about once in 47,000 rolls.
- The average sum is 3.5 per die, because one die averages 3.5.
- Rare is not never — but nor is it due. Roll two dice thirty-six times and there is still roughly a 36% chance you never see a 2.
Frequently asked questions
Q. What are the odds of rolling 42 on 12 dice?
6.65% — 144840476 of 2,176,782,336 possible rolls, or roughly one roll in 15.03.
Q. How often do I roll 42 or more?
53.33% of the time. Rolling 42 or less happens 53.33% of the time.
Q. What is the most likely sum with this many dice?
This one. The average sum is 42.
Q. Will it definitely turn up if I keep rolling?
No. Each roll is independent of the last. One in 15.03 is a long-run average, not a schedule.