Which die sizes are supported?

The common tabletop set — d4, d6, d8, d10, d12, and d20 — plus a custom option for any number of sides from 2 up to 1,000, covering everything from a coin-like 2-sided die to unusual custom dice.

Can I roll more than one die at a time?

Yes, roll anywhere from 1 to 1,000 dice in a single batch, and the tool reports every individual result along with the sum of all rolls.

Are the rolls truly independent of each other?

Yes, each die's result is generated independently with a uniform random number, so previous rolls never influence the next one — there's no 'streak' mechanic or memory between rolls.

Why would I need the sum as well as individual rolls?

Many tabletop games ask for a total (e.g. '3d6' for an ability score, or '2d6+modifier' for an attack roll), so having both the breakdown and the pre-summed total saves you from adding them up by hand.

Dice Roller - Roll d4, d6, d8, d10, d12, d20 or Custom Dice Online

Overview

Introduction

Whether you're playing a tabletop RPG remotely, teaching probability, or just need to make a random decision with more than two outcomes, a virtual dice roller is faster and more portable than physical dice.

This tool rolls any number of dice with any number of sides — the standard d4 through d20 set plus a custom option — and reports each individual result along with the running total.

What Is Dice Roller?

A configurable virtual dice roller supporting both the classic polyhedral tabletop dice set and arbitrary custom side counts.

It reports the full breakdown of individual die results as well as their sum, matching how dice notation like '3d6' is used in games.

How Dice Roller Works

For each of the requested dice, the tool draws a uniformly random integer between 1 and the configured number of sides, inclusive.

All individual rolls are collected into an array and also summed, so both the per-die breakdown and the total are available at once.

When To Use Dice Roller

Use it for tabletop RPG sessions played over voice or video chat, where physical dice aren't practical to share.

Use it to teach or explore probability concepts, like the bell-curve shape that emerges from summing multiple dice (e.g. 2d6 vs. a single d12).

Often used alongside Coin Flipper, Random Wheel Spinner and Random Card Picker.

Features

Advantages

Supports the full standard polyhedral dice set plus any custom number of sides.
Rolls up to 1,000 dice in a single batch, useful for bulk simulations or probability demonstrations.
Reports both individual results and the sum, matching how dice notation is used in games.

Limitations

This uses Math.random(), which is fine for games but not a cryptographically secure random source.
It doesn't parse full dice notation strings like '2d6+3' — you set the die count, side count, and read the sum separately.

Examples

Rolling 3d6

Input

(no input; generated from settings)

Output

4, 2, 6 (sum: 12)

Three six-sided dice rolled together, a common way to generate RPG ability scores.

Rolling a single d20

Input

(no input; generated from settings)

Output

A single 20-sided die roll, common for RPG attack or skill checks.

Best Practices & Notes

Best Practices

Use the sum output directly for damage rolls or ability scores that combine multiple dice.
Roll a large batch (hundreds of dice) if you want to visually verify the distribution looks uniform per die face.

Developer Notes

Each die roll is computed with `1 + Math.floor(Math.random() * sides)`, which is uniform across the [1, sides] range for any side count, including non-standard custom values.

Dice Roller Use Cases

Playing tabletop RPGs remotely without physical dice
Teaching probability and distribution concepts with dice
Generating random values for board game house rules or prototypes

Common Mistakes

Forgetting that this tool rolls plain dice without applying a numeric modifier — add any '+X' bonus manually to the reported sum.
Assuming a single roll represents the 'expected' value — individual rolls vary; only large samples approach the theoretical average.

Tips

Use the custom sides option for house-rule dice, like a d3 or d100, that aren't part of the standard set.
Roll several dice at once and use the sum for RPG stat generation instead of rolling one at a time.

Dice Roller