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Dice roller guide: build multi-dice rolls fast

Roll D4, D6, D8, D10, D12, and D20 dice online with clear totals for D&D, board games, and classroom probability lessons.

6 min read Jan 19, 2026 Updated Jan 19, 2026
Dice RPG Classroom

An online dice roller saves setup time, especially when you need multiple dice, quick totals, or a clean roll history. It works for Dungeons & Dragons (D&D), other tabletop RPGs, board games, and probability demos.

1. Start with your game or lesson

Different contexts call for different dice mixes. A dice roller helps you build the exact pool you need without hunting for missing dice.

  • D&D and tabletop RPGs: Ability checks, saving throws, damage dice, and initiative.
  • Board games: Movement, combat rolls, and quick tie-breakers.
  • Classroom lessons: Probability and distribution demos with large dice pools.

2. Pick the dice you need

Start with the dice type that matches your rules. Most games use a mix of D4, D6, D8, D10, D12, and D20.

  • Use a D20 for main checks or attack rolls.
  • Use a D6 for damage, resources, or movement.
  • Use a D4 or D8 for bonuses or short effects.

3. Build a multi-dice roll

Add the first die, choose the count, and click add. Repeat to build a mixed pool, then roll everything together.

Tip: Save common mixes like 2d6 + 1d8 or 1d20 + 1d4 so you can roll fast during a D&D round.

4. Name dice for clarity

Labeling each die keeps the results easy to read, especially when several dice share the same type.

Dice roller showing a multi-dice roll with visible dice results and a total.
Example roll: Attack D20, Fire D6, and Heal D4 are rolled together so each result is easy to spot.

In a quick D&D round, you might roll an Attack D20, a Fire D6, and a Shield D4 at once. Naming each die makes the outcomes clear before you announce the total.

5. Read totals and keep history

The total shows the combined value, while individual results are listed so you can audit the roll. This helps when players ask how a total was calculated.

6. Common dice roller use cases

Here are quick setups that work well for games and lessons.

Use case Dice setup Why it helps
D&D ability check 1d20 + 1d4 Handle bonuses without extra math
Board game movement 2d6 Classic movement range
Classroom probability 10d6 See distribution in one roll
Tabletop RPG damage 2d6 + 1d8 Resolve mixed damage quickly

Dice roller quick start

  • Pick the die type
  • Set the count
  • Add to the roll
  • Label each die
  • Roll and save results