How do I roll 12d4 online?

Enter 12d4 in the dice notation field and click Roll Dice. The tool rolls twelve four-sided dice and shows every die plus the total.

1d20 means roll one twenty-sided die. The number before d is the number of dice, and the number after d is the number of sides on each die.

Yes. Enter 1d100 or use the d100 preset to generate a number from 1 to 100.

Can I use dice modifiers such as 3d6+2?

Yes. You can add a positive or negative whole-number modifier after the dice notation, such as 3d6+2 or 2d20-1.

Free browser-based dice roller

Dice Roller

Roll 1d20, 2d6, 12d4, 1d100, or your own custom dice notation instantly. See every die, the total, modifiers, and your recent roll history.

Roll dice now Dice notation guide

Roll Result

Press Roll Dice or enter a notation such as 12d4.

Expression1d20

Dice1

Average die—

Total—

Individual dice1d20

Ready to rollTry 1d20, 12d4, 1d100, or a custom notation.

Recent rolls

Your recent dice rolls will appear here.

Roll dice online with standard notation

ToolWisp Dice Roller lets you roll common tabletop dice or enter your own dice expression. Type the number of dice, the letter d, and the number of sides — for example 12d4 for twelve four-sided dice.

You can also add a whole-number modifier such as 3d6+2 or 2d20-1. Every result is generated directly in your browser.

How to use the dice roller

Enter a dice expressionUse 1d20, 2d6, 12d4, 1d100, or another XdY notation.

Roll the dicePress Roll Dice or hit Enter to generate all dice values instantly.

Review the resultSee each individual die, the total, average die value, and recent roll history.

Dice notation examples

The standard format is XdY: X is the number of dice and Y is the number of sides on each die.

Notation	Meaning
1d20	Roll one 20-sided die.
2d6	Roll two 6-sided dice and add the results.
12d4	Roll twelve 4-sided dice and add all twelve values.
1d100	Roll one 100-sided die for a result from 1 to 100.
3d6+2	Roll three 6-sided dice, add them, then add 2.
2d10-1	Roll two 10-sided dice, add them, then subtract 1.

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Dice Roller FAQ

How do I roll 12d4?

Enter 12d4 in the dice notation field and click Roll Dice. ToolWisp rolls twelve four-sided dice, displays every result, and adds them together automatically.

What does 1d10 mean?

1d10 means one ten-sided die. The result can be any whole number from 1 to 10.

Can I roll 1d100 online?

Yes. Enter 1d100 or select the d100 preset. The result will be a whole number between 1 and 100.

Can I add modifiers to dice rolls?

Yes. Use notation such as 3d6+2 to add 2 after the dice are rolled, or 2d20-1 to subtract 1 from the dice total.

How random is this dice roller?

The roller uses the browser's cryptographically strong random number generator when available. It is suitable for games, tabletop sessions, classroom activities, and general random rolls.

Note: This tool is intended for games, simulations, classroom activities, and general randomization. It is not designed for regulated gambling or security-critical random generation.