6d6 = 18
Rolling 6 dice, 3431 of the 46,656 outcomes add up to 18 — a 7.35% chance.
Probability
7.35%
Ways for each sum
- Ways to roll it
- 3,431 / 46,656
- Probability
- 7.35%
- One roll in
- 13.6
- This or higher
- 79.42%
- This or lower
- 27.94%
- Average sum
- 21
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 18 on 6 dice?
7.35% — 3431 of 46,656 possible rolls, or roughly one roll in 13.6.
Q. How often do I roll 18 or more?
79.42% of the time. Rolling 18 or less happens 27.94% of the time.
Q. What is the most likely sum with this many dice?
Something near the average of 21. 5 sums come up more often than 18.
Q. Will it definitely turn up if I keep rolling?
No. Each roll is independent of the last. One in 13.6 is a long-run average, not a schedule.