Dice Roller guide
Dice Roller: Roll Virtual Dice Online
Use our free dice roller to roll any number of d4, d6, d8, d10, d12, d20 or d100 dice, with a modifier for tabletop games.
By the AllCalculator editorial teamUpdated 16 October 20261 min read
Lost the dice for board game night? Our Dice Roller rolls any number of dice, from a single six-sider to a fistful of d20s.
How to use the calculator (Dice Roller)
- Choose the number of dice.
- Choose how many sides each one has.
- Add a modifier if your game needs one, such as +3.
- Press Roll again for a new roll.
You'll see each roll, the total, the highest and lowest roll, the expected average and the range of possible results.
Dice notation
Tabletop games write dice rolls like 3d6+2: roll three six-sided dice and add 2.
| Notation | Meaning |
|---|---|
| d6 | One six-sided die |
| 2d6 | Two six-sided dice, added together |
| d20 | One twenty-sided die |
| 4d8−1 | Four eight-sided dice, minus 1 |
A worked example
With the calculator's default settings, it rolls 2d6. The total can be anything from 2 to 12, and the average is 7, which is also the most likely total.
Frequently asked questions
Is it fair?
Yes. Each die uses your browser's secure random number generator, so every face is equally likely, just like a fair physical die.
Why is 7 the most common total with two dice?
There are 6 ways to make 7 (1+6, 2+5, 3+4, 4+3, 5+2, 6+1), more than any other total.
For other random numbers, try our Random Number Generator.
Sources and further reading
Links open official and independent websites in a new tab.
This guide is general information to help you understand your options. It isn't financial, tax, legal or building advice and doesn't take your personal circumstances into account. Figures were checked when the guide was last updated and can change, so confirm anything important with GOV.UK, HMRC, a regulated adviser or a qualified tradesperson.