How to roll virtual dice
Choose a dice preset or enter a custom side count, then set how many dice to roll. The large result shows the total, with individual rolls below. Copy results includes the dice notation and the full calculation.
Why two dice differ from one number draw
The notation 2d6 means two six-sided dice. Their totals range from 2 to 12, but 7 is more likely than 2 because more combinations add up to 7. Each individual die is uniform; the sum of several dice is not.
Reading the result and dice notation
The big number is the sum of all dice, and the list beneath it shows every die in the order it was rolled, so you can still use individual values when a game asks for them. The notation XdY means X dice with Y sides: 3d6 gives totals from 3 to 18, and the average of any roll equals the number of dice times (sides + 1) ÷ 2, which is 10.5 for both 3d6 and 1d20. Copy results produces a line such as 3d6: 4 + 2 + 5 = 11, ready to paste into a chat or game log. The presets cover D4, D6, D8, D10, D12, D20 and D100; typing a side count that matches a preset highlights it automatically.
Tips for board games and tabletop RPGs
The roller adds no modifiers, so for a roll like 1d20 + 3, roll the die and add the bonus yourself. For advantage or disadvantage, roll 2d20 and take the higher or lower of the two listed values. D100 here is a single die numbered 1 to 100 rather than a pair of ten-sided percentile dice, and every value has the same chance. On 2d6, a total of 7 comes from 6 of the 36 possible combinations, while 2 and 12 each need one exact pair. If you only need one number from a wide range, the Random Number Generator is simpler; for a yes-or-no call use the Coin Flip, and for named options a custom wheel.
Fair rolls in your browser
Each die uses the browser’s cryptographic random source together with rejection sampling: raw values that would favour some faces are discarded and drawn again, so an unusual die such as a D7 or a D1000 is just as even as a D6. Every new roll replaces the previous one on screen, and the result line numbers each round so you can see how many rolls you have made since the page loaded.
