Probability-weighted conversion between dice systems
Enter base/raw arrays only — Use your character's original rolled values before any modifications from leveling up, ability score improvements, or magical items.
D20 systems use modifiers — Enter the modifier (−4 to +4), not the ability score. For example, a score of 14 = modifier of +2.
TLS systems use raw values — Enter the actual dice result (Old TLS: 1-5, New TLS: 0-3).
D20 uses 6 attributes — The standard six: STR, DEX, CON, INT, WIS, CHA.
TLS uses 8 attributes — Includes additional attributes for that system.
Roll 1d6 and 1d4, take absolute difference, reroll zeros. Range: 1-5
Expected: 2.20 | StdDev: 1.17 | 8 attributes
Roll 2d4, take absolute difference, keep zeros. Range: 0-3