Dice Probability Calculator
Calculate dice roll odds, probabilities, and statistics instantly
2 Dice • 3 Dice • 4 Dice • Average Roll • RPG • Star Wars Legion
2 Dice Roll Probability Calculator
Calculate the probability of getting a specific sum when rolling two 6-sided dice.
Two Dice Probability Table
| Sum | Probability | Percentage |
|---|---|---|
| 2 | 1/36 | 2.78% |
| 3 | 2/36 | 5.56% |
| 4 | 3/36 | 8.33% |
| 5 | 4/36 | 11.11% |
| 6 | 5/36 | 13.89% |
| 7 | 6/36 | 16.67% ⭐ Most Likely |
| 8 | 5/36 | 13.89% |
| 9 | 4/36 | 11.11% |
| 10 | 3/36 | 8.33% |
| 11 | 2/36 | 5.56% |
| 12 | 1/36 | 2.78% |
📚 How It Works
Formula: P(A) = Favorable Outcomes / Total Outcomes
Total possible outcomes when rolling 2 dice: 6 × 6 = 36
3 Dice Roll Probability Calculator
Calculate the probability of getting a specific sum when rolling three 6-sided dice.
Three Dice Probability Table
| Sum | Probability | Percentage |
|---|---|---|
| 3 | 1/216 | 0.46% |
| 10 | 27/216 | 12.50% ⭐ Most Likely |
| 11 | 27/216 | 12.50% ⭐ Most Likely |
| 18 | 1/216 | 0.46% |
📚 How It Works
Total possible outcomes when rolling 3 dice: 6 × 6 × 6 = 216
Most likely sums: 10 and 11 (12.50% each)
4 Dice Roll Probability Calculator
Calculate the probability of getting a specific sum when rolling four 6-sided dice.
📚 How It Works
Total possible outcomes when rolling 4 dice: 6 × 6 × 6 × 6 = 1,296
Sum range: 4 (min) to 24 (max)
Average Dice Roll Calculator
Calculate the expected average value when rolling multiple dice.
Formula
Average Value = (Max Side + 1) / 2 × Number of Dice
Average Dice Roll Reference
| Die | 1 Die | 2 Dice | 3 Dice |
|---|---|---|---|
| d4 | 2.5 | 5 | 7.5 |
| d6 | 3.5 | 7 | 10.5 |
| d8 | 4.5 | 9 | 13.5 |
| d10 | 5.5 | 11 | 16.5 |
| d12 | 6.5 | 13 | 19.5 |
| d20 | 10.5 | 21 | 31.5 |
RPG Dice Probability Calculator
Calculate probabilities for various RPG dice combinations (d4, d6, d8, d10, d12, d20).
📚 Common RPG Dice Notation
nDm = Roll n dice with m sides
Examples: 1d20, 3d6, 2d10, 4d8
Used in: Dungeons & Dragons, Pathfinder, Warhammer, Call of Cthulhu
Star Wars Legion Dice Calculator
Calculate hit/crit odds for Star Wars Legion attack and defense dice.
Star Wars Legion Dice Stats
| Dice | Crit % | Hit % | Damage Value |
|---|---|---|---|
| White | 12.5% | 12.5% | 25% |
| Black | 16.67% | 50% | 50% |
| Red | 16.67% | 83.33% | 75% |
❓ Frequently Asked Questions
What is the probability formula?
P(A) = (Favorable Outcomes) / (Total Possible Outcomes). For example, rolling a 6 on one die: P(6) = 1/6 ≈ 16.67%
What is the most likely sum with two dice?
The sum of 7 has the highest probability (6/36 or 16.67%) with two standard dice. This is because there are 6 ways to roll a 7: (1,6), (2,5), (3,4), (4,3), (5,2), (6,1).
How many total outcomes are possible?
Multiply the number of sides on each die. For 2 dice: 6×6=36 outcomes. For 3 dice: 6×6×6=216 outcomes. For 4 dice: 6×6×6×6=1,296 outcomes.
What is average dice roll?
Use the formula: Average = ((Max Value + 1) / 2) × Number of Dice. For one d6: (6+1)/2 = 3.5. For two d6: 3.5 × 2 = 7.
What are standard dice used for?
Dice are primarily used for tabletop games (D&D, Warhammer, Catan), role-playing games, probability simulations, and decision-making in games of chance.