Online Dice Roller
Roll up to 10 virtual dice at once, from d4 to d100, and get the total instantly.
What is an online dice roller for?
An online dice roller replaces the dice that went missing from the board game box, the d20 that rolled under the table, or the handful of dice a whole class would need for a probability lesson. Choose how many dice to roll and how many faces they have, tap Roll, and you get every value plus the total in under a second.
It is also handy for remote game nights: share your screen on a video call and everyone sees the same roll, with no doubt about who nudged the die. The history keeps track of previous rolls, so you can check what happened two turns ago.
How to roll the dice
- Choose the number of dice, from 1 to 10.
- Choose the type of die: d4, d6, d8, d10, d12, d20 or d100.
- Tap Roll. The dice tumble for less than a second.
- Read each die and the total, and scroll the history for earlier rolls.
Dice types from d4 to d100
“d” stands for die, and the number after it is the number of faces: a d8 has eight faces numbered 1 to 8. Role-playing players write rolls as “2d6”, meaning two six-sided dice added together.
| Die | Shape | Typical use |
|---|---|---|
| d4 | Tetrahedron, 4 faces | Small damage rolls in role-playing games |
| d6 | Cube, 6 faces | Most board games, Ludo, backgammon |
| d8 | Octahedron, 8 faces | Weapon damage, number games |
| d10 | 10 faces | Scores out of 10, percentile rolls |
| d12 | Dodecahedron, 12 faces | Months, hours, bigger damage |
| d20 | Icosahedron, 20 faces | Attacks and skill checks in D&D |
| d100 | Percentile, 1 to 100 | Random tables and percent chances |
On screen, the d6 shows classic pips, while the other dice appear as numbered shapes, easy to read on a small phone.
Several dice and the total
Roll up to 10 dice of the same type at once. The roller shows every die separately and adds them up, so you never have to count pips in a hurry. Totals are not evenly spread: with two six-sided dice there are 36 combinations, and six of them make 7, so 7 comes up 1 time in 6, about 16.7%. A 2 or a 12 each needs one exact combination, only 1 in 36, about 2.8%. With three dice, 10 and 11 are the most likely totals, at 12.5% each.
Board games and role-playing games
For family games, pick one d6 for Ludo or snakes and ladders, two for backgammon and most property-trading games, and five for Yahtzee-style games where you roll for combinations. Put the phone in the middle of the table and pass it around, or let one player be the official roller.
For Dungeons & Dragons and other tabletop RPGs, the d20 decides attacks, saving throws and skill checks. To roll with advantage, roll two d20 and keep the higher one: your chance of at least one natural 20 almost doubles, from 5% to 9.75%. Damage rolls such as 3d6 or 2d8 work the same way, with the total ready to read.
Dice probability in the classroom
Predict, then roll
Ask the class which total of two dice is most likely, then roll 50 times and tally the results on the board. The bump around 7 appears quickly and turns a list of fractions into something students can see.
Math games
Roll two dice and multiply them for quick times-table practice, or roll three and race to make a target number with any operation. The multiplication wheel and the random number generator make good companions for the same lesson.
Party games
Number your options from 1 to 6 and let a d6 decide, or roll to choose who takes the next turn in truth or dare. A roll of 1 could mean a challenge from the punishment wheel.
Is the virtual dice roller fair?
Yes. Each die is rolled separately with your browser’s cryptographic random generator, using a method that removes any bias, so on a d6 every face has exactly 1 chance in 6, about 16.7%, and on a d20 exactly 5%. Physical dice are rarely that perfect: rounded corners, air bubbles and drilled pips can make some faces land slightly more often. The fairness page explains how our draws are made and lets you run thousands of them yourself.
Frequently asked questions
Is a virtual dice roller fair?
Yes, as long as it uses a good random source. This one uses the cryptographic generator built into your browser and an unbiased method, so each face of a d6 has exactly a 1 in 6 chance and the rolls are independent. A six after three sixes is just as likely as any other face.
How many dice can I roll at once?
Up to 10 dice in a single roll, all of the same type: d4, d6, d8, d10, d12, d20 or d100. The roller shows each value separately and the total underneath. For 10 six-sided dice the total ranges from 10 to 60, with 35 the most likely result. Earlier rolls stay in the history.
What is a d20?
A d20 is a die with 20 faces numbered 1 to 20, shaped like an icosahedron. It is the main die in Dungeons & Dragons and many other role-playing games, where it decides whether an attack or action succeeds. Each number has a 5% chance; rolling a 20 is often called a natural 20 or a critical hit.
What is the probability of rolling a 7 with two dice?
It is 6 in 36, which is 1 in 6 or about 16.7%. Of the 36 possible combinations of two six-sided dice, six add up to 7: 1+6, 2+5, 3+4, 4+3, 5+2 and 6+1. That makes 7 the most common total, while 2 and 12 are the rarest at 1 in 36 each.
Can I roll a d100 for percentages?
Yes. Choose the d100 and you get a whole number from 1 to 100, each with exactly a 1% chance. With physical dice, players usually roll two d10s, one for the tens and one for the units. Here one roll does it, which is quicker for random tables or “percent chance” rules.
Does the dice roller work without internet?
Yes. Once you have opened the page, it keeps working offline, which is useful on a camping trip or in a classroom with weak Wi-Fi. Add it to your home screen to open it like an app. For a quick two-way choice instead of a roll, use the coin flip.
Updated on by the LuckyWheel team