Roll any type of dice instantly online! Standard dice: D4 (1-4), D6 (1-6), D8 (1-8), D10 (1-10), D12 (1-12), D20 (1-20). Each face has equal probability: a D6 has 1/6 = 16.7% chance for each number. Roll multiple dice and get total instantly!
📂 Daily Life
🎲 Dice Roller
Roll any dice online instantly! Choose D4, D6, D8, D10, D12, D20 or custom sides. Roll up to 20 dice at once. Perfect for board games, D&D, tabletop RPGs, and more!
✏️ Enter Your Values
✨ Your Result
🦉Owl's Explanation
🎲
Fill in the values above and click Calculate ✨
✅ Trusted Tool
The 365tool.net Dice Roller simulates fair dice using a pseudorandom number generator. Each face has equal probability. Perfect for games, D&D, and any situation where you need dice but do not have any! No sign-up needed.
🤔 How Does This Work?
The Dice Roller uses JavaScript's Math.random():
Roll = Math.floor(Math.random() x sides) + 1
Each number from 1 to max has equal probability (1/sides)
For multiple dice: each is rolled independently and summed
Shows individual results and total
❓ Frequently Asked Questions
What are the different types of dice?▼
Standard tabletop gaming dice: D4 (tetrahedron, 4 faces), D6 (cube, 6 faces — standard board game die), D8 (octahedron, 8 faces), D10 (pentagonal trapezohedron, 10 faces), D12 (dodecahedron, 12 faces), D20 (icosahedron, 20 faces). These are standard in Dungeons and Dragons and most tabletop RPGs.
What is a D20 used for in D&D?▼
The D20 (20-sided die) is the most important die in Dungeons & Dragons. It is used for attack rolls, saving throws, and ability checks. Natural 20 (rolling the maximum) is a critical hit. Natural 1 is a critical failure. Other dice are used for damage: D6 for shortswords, D8 for longswords, D12 for greataxes.
What is the average roll for different dice?▼
D4: average 2.5. D6: average 3.5. D8: average 4.5. D10: average 5.5. D12: average 6.5. D20: average 10.5. For multiple dice: 2D6 averages 7 (that is why 7 is the most common result in Craps). The average of any die is (max+1)/2.
Is online dice rolling fair?▼
Our dice roller uses JavaScript's Math.random() which is a pseudorandom number generator. It passes statistical tests for randomness and is fair for gaming purposes. Every face has equal probability with millions of possible values. For scientific or cryptographic purposes, stronger sources are used.
What does 2D6+3 mean?▼
It means: roll 2 six-sided dice and add 3 to the total. 2D6 ranges from 2-12, so 2D6+3 ranges from 5-15. This notation is standard in tabletop RPGs. D20+5 means roll a D20 and add 5 (representing a skill or ability bonus).
Standard tabletop gaming dice: D4 (tetrahedron, 4 faces), D6 (cube, 6 faces — standard board game die), D8 (octahedron, 8 faces), D10 (pentagonal trapezohedron, 10 faces), D12 (dodecahedron, 12 faces), D20 (icosahedron, 20 faces). These are standard in Dungeons and Dragons and most tabletop RPGs.
What is a D20 used for in D&D?▼
The D20 (20-sided die) is the most important die in Dungeons & Dragons. It is used for attack rolls, saving throws, and ability checks. Natural 20 (rolling the maximum) is a critical hit. Natural 1 is a critical failure. Other dice are used for damage: D6 for shortswords, D8 for longswords, D12 for greataxes.
What is the average roll for different dice?▼
D4: average 2.5. D6: average 3.5. D8: average 4.5. D10: average 5.5. D12: average 6.5. D20: average 10.5. For multiple dice: 2D6 averages 7 (that is why 7 is the most common result in Craps). The average of any die is (max+1)/2.
Is online dice rolling fair?▼
Our dice roller uses JavaScript's Math.random() which is a pseudorandom number generator. It passes statistical tests for randomness and is fair for gaming purposes. Every face has equal probability with millions of possible values. For scientific or cryptographic purposes, stronger sources are used.
What does 2D6+3 mean?▼
It means: roll 2 six-sided dice and add 3 to the total. 2D6 ranges from 2-12, so 2D6+3 ranges from 5-15. This notation is standard in tabletop RPGs. D20+5 means roll a D20 and add 5 (representing a skill or ability bonus).