4d6 = 15
Rolling 4 dice, 140 of the 1,296 outcomes add up to 15 — a 10.8% chance.
Probability
10.8%
Ways for each sum
- Ways to roll it
- 140 / 1,296
- Probability
- 10.8%
- One roll in
- 9.26
- This or higher
- 44.37%
- This or lower
- 66.44%
- Average sum
- 14
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 15 on 4 dice?
10.8% — 140 of 1,296 possible rolls, or roughly one roll in 9.26.
Q. How often do I roll 15 or more?
44.37% of the time. Rolling 15 or less happens 66.44% of the time.
Q. What is the most likely sum with this many dice?
Something near the average of 14. 1 sums come up more often than 15.
Q. Will it definitely turn up if I keep rolling?
No. Each roll is independent of the last. One in 9.26 is a long-run average, not a schedule.