Roll 3d6
Three d6 summed gives 3 to 18 with a strong bell curve: 10 and 11 each come up 12.5% of the time, a natural 18 only once in 216 rolls. It was the original way to roll D&D ability scores.
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What a 3d6 is for
- Old-school "3d6 in order" ability scores
- GURPS success rolls (roll under your skill)
- Any roll where you want results to cluster near the middle
Want more dice or a modifier? Edit the box, for example 3d6+2.
3d6 odds
Totals run from 3 to 18 and bunch in the middle. Average 10.5.
3456789101112131415161718
| Total | Exactly | At least |
|---|---|---|
| 3 | 0.46% | 100.00% |
| 4 | 1.39% | 99.54% |
| 5 | 2.78% | 98.15% |
| 6 | 4.63% | 95.37% |
| 7 | 6.94% | 90.74% |
| 8 | 9.72% | 83.80% |
| 9 | 11.57% | 74.07% |
| 10 | 12.50% | 62.50% |
| 11 | 12.50% | 50.00% |
| 12 | 11.57% | 37.50% |
| 13 | 9.72% | 25.93% |
| 14 | 6.94% | 16.20% |
| 15 | 4.63% | 9.26% |
| 16 | 2.78% | 4.63% |
| 17 | 1.39% | 1.85% |
| 18 | 0.46% | 0.46% |
Roll history
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Questions people ask
What is the average of 3d6?
10.5.
What are the odds of rolling 18 on 3d6?
1 in 216, about 0.46%.
3d6 or 4d6 drop lowest?
4d6 drop lowest averages about 12.24 instead of 10.5, so characters come out stronger. Compare them on the stat roller page.