Dice Roller

Roll Dice Online — From Classic d6 to Epic d20

Looking for a dice roller that works anywhere, anytime? Our free online dice simulator lets you roll up to 20 dice with any number of sides — from a humble d4 to a mighty d100. Whether you're deep in a tabletop RPG session, settling a board game dispute, or just curious what chance has in store, you get instant, fair, cryptographically random rolls.

How to Use the Dice Roller

Using our dice roller takes seconds:

1. Choose how many dice to roll (1–20).
2. Select the die type from the dropdown — d4, d6, d8, d10, d12, d20, d100, or enter a custom number of sides.
3. Click "Roll Dice" to see your result.
4. Each die shows its individual value, plus the total at the bottom.
5. Copy your roll results with one click.

No downloads, no sign-up, no ads. The dice roller runs entirely in your browser.

What Are All Those Dice Types?

Dice come in many shapes and sizes, each with a different number of sides:

• d4 — A tetrahedron with 4 triangular faces. Rolls a number 1–4. Often used for small damage rolls in RPGs.
• d6 — The classic cube with 6 square faces. This is the dice you'd find in most board games. Rolls 1–6.
• d8 — An octahedron with 8 triangular faces. Rolls 1–8. Common in RPGs for medium damage.
• d10 — A pentagonal trapezohedron with 10 faces. Often used for percentile systems. Rolls 1–10.
• d12 — A dodecahedron with 12 pentagonal faces. Rolls 1–12. Used for larger damage rolls.
• d20 — The iconic 20-sided die used in Dungeons & Dragons for skill checks, attacks, and saving throws. Rolls 1–20. Rolling a 20 is a critical success.
• d100 — Two d10s used together to generate a number from 1–100. Common in percentile-based game systems.

How Random Are the Rolls?

Every roll uses your browser's Web Crypto API to generate genuinely random numbers. Unlike pseudo-random number generators used by some apps, our dice roller produces cryptographic randomness — the same quality used for security-sensitive operations. Each die face has an exactly equal chance of landing face-up. There are no patterns, no manipulation, and no memory of previous rolls.

Common Uses for a Dice Roller

• Tabletop RPGs — Dungeons & Dragons, Pathfinder, Call of Cthulhu, and countless other RPGs rely on dice for combat, skill checks, and character creation.
• Board games — Settle disputes, replace lost dice, or play games that require dice but don't have physical dice handy.
• Probability education — Roll many dice to demonstrate statistical distributions in the classroom.
• Decision making — Give every option an equal shot. If you have more choices than dice can handle, combine multiple die types.
• Games and gambling — Quick rolls for casual games, betting games, or any activity that benefits from a fair random draw.

The History of Dice

Dice are among the oldest gaming implements known to humanity. Archaeological discoveries have uncovered dice made from bone, ivory, and clay dating back thousands of years — some specimens are over 5,000 years old. The ancient Egyptians played games with dice, as did the Romans, who called their cube dice "tesserae." In Japan, peculiar faceted dice called "rice dice" were used historically. Today, dice remain an essential tool for millions of players worldwide, from casual board game nights to high-stakes competitive gaming.