Provably fair results
Every roll uses your browser's cryptographic random generator with rejection sampling, so every face is exactly equally likely.
Fair, 3D, free
Dice Roller Roll a dice online: D6, D20 and any RPG dice
This free dice roller rolls realistic 3D dice with truly random results. Roll 1 to 12 dice of any type, hold dice for Yahtzee, roll with advantage or type D&D notation like 4d6dl1 or 1d20+5.
- Cryptographically fair
- D4 to D100 and custom
- RPG dice notation
- Hold dice
Roll dice
Dice type
Number of dice
Modifier
D20 roll
?
Press Roll, tap the dice area or hit Space.
Tap a six-sided die after rolling to hold it. Press Space to roll.
Custom dice notation (D&D and RPG)
Rolls0
Highest-
Average-
Roll history
Your rolls will appear here.
Why it's better
Why this online dice roller is better
Most dice sites roll a couple of flat six-sided dice. This one covers board games, tabletop RPGs and classrooms with real 3D dice and the rules players actually use.
Every die you need
Roll d4, d6, d8, d10, d12, d20, percentile d100 or any custom die from 2 to 1,000 sides, up to 12 at a time.
Full RPG dice notation
Type 1d20+5, 2d8+1d6+3 or 4d6dl1. Keep highest, keep lowest and drop dice are supported for D&D and Pathfinder.
Advantage and crits
Roll a d20 with advantage or disadvantage in one tap, with natural 20s and natural 1s called out automatically.
Hold dice for Yahtzee
Tap any six-sided die to keep it for the next roll, exactly how Yahtzee, Farkle and other dice games are played.
Stats and history
See the possible range and average of every roll, plus a session history with your highest and average results.
How it compares with typical dice rollers
| Feature | This dice roller | Typical dice sites |
|---|---|---|
| Dice types | d4 to d100 plus custom | Often d6 only |
| Dice notation (2d6+3, 4d6dl1) | Yes, with keep and drop | Rarely |
| Advantage and disadvantage | One tap | Rarely |
| Hold dice between rolls | Yes | Rarely |
| Range and average shown | Yes | Rarely |
| Shake to roll on phones | Yes | Sometimes |
| Randomness source stated | Cryptographic | Often not stated |
How to use
How to roll dice online
Roll in one tap, or set up exactly the dice your game needs.
Only need heads or tails? Try the coin flipper, or pick numbers with the random number generator.
Choose the dice
Pick a die type from d4 to d100, or choose dN for a custom number of sides.
Set how many and a modifier
Use the plus and minus buttons for up to 12 dice and a bonus or penalty to add to the total.
Roll
Press Roll, tap the dice tray, hit Space or shake your phone. The dice tumble and land on truly random faces.
Hold or re-roll
Tap six-sided dice to hold them, then roll again to re-roll only the others.
Use notation for RPGs
Open Custom dice notation and type any formula, such as 1d20+5 for an attack or 4d6dl1 for ability scores.
Dice notation
Dice notation explained
Tabletop games write dice as NdS: the number of dice, the letter d and the number of sides. So 3d6 means roll three six-sided dice and add them up.
Modifiers and keep or drop rules let you describe almost any roll in a few characters. All of these work in the custom notation box.
| Write | Meaning | Example |
|---|---|---|
NdS | Roll N dice with S sides | 3d6 |
+M or -M | Add or subtract a number | 1d20+5 |
d% | Percentile die, 1 to 100 | d% |
khN / klN | Keep the highest or lowest N dice | 2d20kh1 |
dlN / dhN | Drop the lowest or highest N dice | 4d6dl1 |
| Combine | Mix several dice and numbers | 2d8+1d6+3 |
Dice types
Common dice and what they are used for
Tabletop role-playing games use a standard set of polyhedral dice, while most board games stick to six-sided dice.
| Die | Shape | Average roll | Common use |
|---|---|---|---|
| d4 | Tetrahedron (4 faces) | 2.5 | Small weapon damage, healing spells |
| d6 | Cube (6 faces) | 3.5 | Board games, Yahtzee, Monopoly, Ludo, fireball damage |
| d8 | Octahedron (8 faces) | 4.5 | Longsword damage, hit dice |
| d10 | Pentagonal trapezohedron (10 faces) | 5.5 | Heavy weapons, percentile rolls in pairs |
| d12 | Dodecahedron (12 faces) | 6.5 | Greataxe damage, barbarian hit dice |
| d20 | Icosahedron (20 faces) | 10.5 | Attack rolls, ability checks and saving throws |
| d100 | Percentile (two d10s) | 50.5 | Percentage chances and random tables |
Probability
Dice probability: rolling two dice
With two six-sided dice there are 36 equally likely combinations, but totals are not equally likely. Seven can be made six ways, so it comes up most often, while 2 and 12 each need one exact pair.
For a single d20, a natural 20 has a 5% chance. Rolling with advantage raises that to 9.75% and lifts the average roll from 10.5 to about 13.8. Disadvantage lowers the average to about 7.2.
| Total (2d6) | Ways | Chance |
|---|---|---|
| 2 or 12 | 1 | 2.78% |
| 3 or 11 | 2 | 5.56% |
| 4 or 10 | 3 | 8.33% |
| 5 or 9 | 4 | 11.11% |
| 6 or 8 | 5 | 13.89% |
| 7 | 6 | 16.67% |
Benefits
When a virtual dice roller helps
Lost a die under the sofa? Playing over a video call? A browser dice roller is always ready and never argues.
Board games night
Replace missing dice for Ludo, Monopoly, Snakes and Ladders, Yahtzee or backgammon in seconds.
D&D and tabletop RPGs
Roll attacks, damage and ability scores with notation and advantage, perfect for online campaigns.
Maths lessons
Show probability and averages with real rolls and the built-in range and average readout.
Games over video calls
Share your screen so everyone sees the same fair roll, with no chance of a sneaky re-roll.
Popular ways to use it
- Roll a d20
- Roll 2 dice for Monopoly
- Ludo dice
- Yahtzee with held dice
- D&D ability scores
- Damage rolls
- Classroom probability
- Drinking and party games
FAQ
Dice roller FAQ
Is this online dice roller truly random?
Yes. Every roll uses your browser's cryptographic random number generator with rejection sampling, so each face of every die is exactly equally likely.
How do I roll a d20 with advantage?
Choose d20 with one die, then select Advantage. Two d20s are rolled and the higher one counts. Disadvantage keeps the lower one.
What does 2d6+3 mean?
Roll two six-sided dice, add them together and add 3. The first number is how many dice, the number after d is the number of sides, and +3 is a modifier.
How do I roll 4d6 drop lowest for D&D stats?
Type 4d6dl1 in Custom dice notation. Four dice are rolled and the lowest is dropped, the classic way to roll ability scores.
Can I hold dice between rolls?
Yes. After rolling six-sided dice, tap any die to hold it. Held dice keep their value on the next roll, just like in Yahtzee.
What is the most common total with two dice?
Seven. There are 6 ways to make 7 out of 36 combinations, a 16.67% chance. Totals of 2 and 12 are the rarest at 2.78% each.
How many dice can I roll at once?
Up to 12 dice with the quick controls, and up to 100 dice per group in custom notation, with 2 to 1,000 sides per die.
Can I roll dice by shaking my phone?
Yes. Turn on Shake phone to roll, allow motion access if your phone asks, then give it a shake to roll.
Does the dice roller work offline?
Yes. Once the page has loaded, every roll happens in your browser, so it keeps working without an internet connection.
Ready to roll?
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