3d6 chart

[Mike W]

Couldn't find a good place to post this so I created one. It's a percentage chart of rolling each number 3-17(or less) on 3d6. I've found it useful as both a player and a GM and thought I'd pass it on.

 

3 - 0.46%

4 - 1.85%

5 - 4.63%

6- 9.26%

7- 16.20%

8- 25.93%

9- 37.50%

10- 50.00%

11- 62.50%

12- 74.07%

13- 83.80%

14- 90.74%

15- 95.37%

16- 98.15%

17- 99.54%

 

A few things immediately stand out. First, having a familiarity gives you about a 1/4 chance of making the roll. Also, it is easy to see why 12- is considered professional level. After all, you're 74% - about 3 success in 4 tries, before modifiers for routine matters push you into the 90+ percent range. Also, anything over about 14- is, for the most part, just buying against penalties since you already will make 10 rolls out of 11.

[Trebuchet]

I use a similar chart, though it appears we rounded somewhat differently. It's still very handy to know.

 

Roll/Success % (Percentage chance to roll number or less on 3d6)

3- 0.5 % Note: A natural roll of "3" is always a hit/success

4- 1.9

5- 4.6

6- 9.3

7- 16.2

8- 25.9

9- 37.5

10- 50.0

11- 62.5

12- 74.1

13- 83.8

14- 90.7

15- 95.4

16- 98.1

17- 99.5

18- 100.0 Note: A natural roll of "18" is always a miss/failure

[Foxx!]

Thank you