10 Sided Dice Roller Calculator
Roll D10 dice online for RPGs, DnD, board games, and probability experiments
Roll Your D10 Dice
Choose how many 10-sided dice to roll simultaneously
About D10 Dice
What is a D10?
A D10 is a 10-sided fair die with equal probability for each outcome (1-10).
Shape: Pentagonal trapezohedron with kite-shaped faces
Each face has a 10% (1/10) chance of being rolled
Expected value: 5.5 per die
Gaming Applications
• RPGs: Vampire: The Masquerade, World of Darkness
• D&D: Basic game, percentage rolls
• Percentile: Two D10s for 1-100 results
• Storytelling: White Wolf game systems
D10 Quick Reference
Sides
Each numbered 1-10
Equal probability
Probability
10% per face
1 in 10 chance
Expected Value
5.5 per die
Theoretical average
Probability Tips
Each number 1-10 has exactly 10% chance
Average roll approaches 5.5 over many rolls
Two D10s can simulate percentile (1-100%)
Sum of multiple dice follows normal distribution
More dice = more predictable average
Understanding 10-Sided Dice
Physical Properties
A 10-sided die (D10) is a polyhedron with ten faces, typically shaped as a pentagonal trapezohedron. Each face is kite-shaped and numbered from 1 to 10 (or sometimes 0 to 9). The die is designed to be fair, meaning each outcome has an equal probability of occurring.
Mathematical Properties
- •Sample Space: 10
- •Probability: P(X = k) = 1/10 = 0.1 for any k
- •Expected Value: E(X) = (1+2+...+10)/10 = 5.5
- •Variance: Var(X) = 8.25
Gaming Applications
Popular Game Systems Using D10
- World of Darkness: Vampire, Werewolf, Mage systems
- Storyteller System: White Wolf RPGs
- D&D Basic: Percentage rolls and some mechanics
- Percentile Rolling: Two D10s for 1-100 results
- Exalted: Storytelling system mechanics
Pro Tip: For percentile rolls, designate one die as tens and one as units. Rolling 7 and 3 gives 73%, while 0 and 0 typically equals 100%.
Fair Probability
Each face has exactly 10% probability, making D10 ideal for percentage-based systems.
Versatile Gaming
Essential for many RPG systems, especially those using storytelling mechanics.
Statistical Analysis
Perfect for probability experiments and understanding uniform distributions.