Dice Roller - Roll D20 D6 D12 D10 Random Dice Online
Roll any combination of dice (d4, d6, d8, d10, d12, d20, or custom) with modifiers for tabletop RPGs and games.
How to use this calculator
👉 Fill in the boxes below and your answer appears instantly — no maths needed, we do it all for you! 🎉
In plain English — what does this do?
🎲 Can’t decide something? Let this tool pick for you! It’s like flipping a coin or rolling a dice — totally random and fair. Great for picking who goes first or making a quick choice.
The Dice Roller simulates rolling multiple polyhedral dice used in tabletop RPGs and board games. You can roll standard dice (d4 through d20) or a custom-sided die, add a modifier, and see individual die results alongside the total.
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Individual Rolls
What is Dice Roller - Roll D20 D6 D12 D10 Random Dice Online?
The Dice Roller simulates rolling multiple polyhedral dice used in tabletop RPGs and board games. You can roll standard dice (d4 through d20) or a custom-sided die, add a modifier, and see individual die results alongside the total.
How to use it
- 1️⃣ Select the number of dice to roll (1–20).
- 2️⃣ Choose the die type: d4, d6, d8, d10, d12, d20, or enter a custom number of sides.
- 3️⃣ Optionally enter a positive or negative modifier to add to the total.
- 4️⃣ Click Roll Dice to generate a random result.
- 5️⃣ Individual die results are shown below the total so you can see each roll.
Formula
💡 See it in action — a real example
❓ Common questions
- Is this truly random?
- The roller uses the browser's Math.random(), which is a pseudorandom number generator suitable for gaming but not cryptographic purposes.
- What does d20 mean?
- d20 means a 20-sided die. The 'd' prefix stands for 'die' and the number indicates how many faces it has.
- What is a modifier?
- A modifier is a fixed number added (or subtracted) from the sum of the dice. For example, a +3 modifier means you add 3 to whatever the dice show.
- Can I roll percentile dice?
- Yes — select d10 and roll two dice, treating one as tens and one as units, for 01–100. Or use the custom die option and set 100 sides.
- What is the custom die type?
- The custom option lets you specify any number of sides, such as a d3, d7, or d100, to simulate uncommon or homebrew dice.