Dice Roller

Whether you're playing Dungeons & Dragons, a board game, or just need a random number, this online dice roller simulates any type of die — from a classic D6 to the D20 beloved by tabletop RPG players — instantly and truly randomly.

What Does This Dice Roller Do?

Roll any combination of dice — multiple dice of the same type or mixed types — and see individual results plus a total. Supports all standard polyhedral dice used in tabletop gaming.

How to Use This Roller

1. Select the type of die (D4, D6, D8, D10, D12, D20, D100, or custom).
2. Select the number of dice to roll at once.
3. Click Roll to see results and the total.
4. Add a modifier (e.g., +3 for an ability modifier in D&D) to the total.

Standard Dice Types

• D4 (4 sides) — used for daggers, magic missiles in D&D
• D6 (6 sides) — the classic six-sided die; used in most board games
• D8 (8 sides) — used for longswords, hit dice for clerics/druids
• D10 (10 sides) — used for percentile rolls (two D10s = 1–100)
• D12 (12 sides) — used for greataxes, hit dice for barbarians
• D20 (20 sides) — the iconic RPG die; used for attack rolls, saving throws
• D100 — percentile die; also achievable with two D10s

Example Roll

Rolling 3D6 for a D&D ability score:

• Roll 1: 4 | Roll 2: 6 | Roll 3: 3
• Total: 13

Rolling 1D20 + 5 for an attack roll:

• D20 result: 14 + modifier 5 = 19

Why Use an Online Dice Roller?

No dice on hand? Playing online or via video call? Need to roll an unusual die type you don't own? This roller covers all scenarios with truly random results generated using your browser's cryptographic random number generator.

Common Uses

• Dungeons & Dragons and other tabletop RPGs
• Board games that require dice (especially large numbers of dice)
• Wargaming (Warhammer, etc.) — quickly rolling many dice at once
• Math activities and probability demonstrations
• Decision-making ("roll a D6: odd means yes, even means no")

Frequently Asked Questions

Is the dice roller truly random?

Yes. The roller uses the browser's built-in cryptographic random number function (crypto.getRandomValues), which is as random as digital systems get — suitable for all gaming purposes.

How do I roll a D100?

Select D100 directly, or roll two D10s: one for the tens digit (00–90) and one for the units digit (0–9). 00+0 = 100, 00+1 = 1, etc.

Can I roll multiple dice at once?

Yes. Select the number of dice and the type, and all dice are rolled simultaneously. Individual results are shown plus the sum total.

What is a critical hit in D&D?

Rolling a natural 20 (the maximum result on a D20) on an attack roll is a critical hit. Most rules let you roll damage dice twice for a critical hit.

How do I simulate a coin flip?

Use the D2 (or select D6 and call 1–3 = heads, 4–6 = tails). Alternatively, many dice rollers include a dedicated coin flip option.

Conclusion

A great dice roller is an essential tool for any tabletop gamer — physical or digital. Roll any die, any number of times, with results you can trust to be truly random. Keep it bookmarked for your next game night.

Related: Random Number Generator | Probability Calculator