User talk:LRichardson/Essays/2d6 to 1d20 Conversion

I'm going to be reworking this to include equivalences for 1d20, 1d24, 1d30 and 1d100.

In the meantime I am going to be holding the formatted tables here.

Decmial Values
Roll	P equal to or	P less	P equal to or	P greater
( R )	less than R	than R	greater than R	than R
2	0.0278	0.0000	1.0000	0.9722
3	0.0833	0.0278	0.9722	0.9167
4	0.1667	0.0833	0.9167	0.8333
5	0.2778	0.1667	0.8333	0.7222
6	0.4167	0.2778	0.7222	0.5833
7	0.5833	0.4167	0.5833	0.4167
8	0.7222	0.5833	0.4167	0.2778
9	0.8333	0.7222	0.2778	0.1667
10	0.9167	0.8333	0.1667	0.0833
11	0.9722	0.9167	0.0833	0.0278
12	1.0000	0.9722	0.0278	0.0000

Reduced Table
Roll	Number of	C equal to or	C less	C equal to or	C greater
( R )	Combinations	less than R	than R	greater than R	than R
2	1	1	0	36	35
3	2	3	1	35	33
4	3	6	3	33	30
5	4	10	6	30	26
6	5	15	10	26	21
7	6	21	15	21	15
8	5	26	21	15	10
9	4	30	26	10	6
10	3	33	30	6	3
11	2	35	33	3	1
12	1	36	35	1	0

1d20
Roll	P equal to or	P less	P equal to or	P greater
( R )	less than R	than R	greater than R	than R
1	0.05	0.00	1.00	0.95
2	0.10	0.05	0.95	0.90
3	0.15	0.10	0.90	0.85
4	0.20	0.15	0.85	0.80
5	0.25	0.20	0.80	0.75
6	0.30	0.25	0.75	0.70
7	0.35	0.30	0.70	0.65
8	0.40	0.35	0.65	0.60
9	0.45	0.40	0.60	0.55
10	0.50	0.45	0.55	0.50
11	0.55	0.50	0.50	0.45
12	0.60	0.55	0.45	0.40
13	0.65	0.60	0.40	0.35
14	0.70	0.65	0.35	0.30
15	0.75	0.70	0.30	0.25
16	0.80	0.75	0.25	0.20
17	0.85	0.80	0.20	0.15
18	0.90	0.85	0.15	0.10
19	0.95	0.90	0.10	0.05
20	1.00	0.95	0.05	0.00

1d20
Roll	Raw 2d6	Adjusted	Wildcard	Alt. Wildcard
( R )	Equivalent	2d6 Eq.	2d6 Eq.	2d6 Eq.
1	2	2	3	3
2	3	3	4	4
3	4	4	4	4
4	5	5	5	5
5	5	5	5	5
6	5	6	6	6
7	6	6	6	6
8	6	6	6	7
9	7	7	7	7
10	7	7	7	7
11	7	7	7	7
12	7	7	8	7
13	8	8	8	8
14	8	8	8	8
15	9	8	9	9
16	9	9	9	9
17	9	9	10	10
18	10	10	10	10
19	11	11	11	11
20	12	12	2 or 12	2 or 12