A d10 is a ten-sided die that gives a result from 1 to 10. Each result has a 10% chance and the average is 5.5. Two d10 together give a percentile (d100) result from 1 to 100.
Quick facts
- Shape
- Pentagonal trapezohedron
- Result range
- 1 – 10
- Average
- 5.5
- Chance of each result
- 1/10 = 10%
- Typical use
- Percentile dice (d100), Vampire: The Masquerade, heavy D&D weapons
How do I roll percentile (d100) with d10s?
Roll two d10: one is the tens digit, the other the ones digit. Tens 7 and ones 3 make 73; if both show 10 (or 0) the result is 100. Choose 2 dice to roll both at once.
Where is the d10 used?
- Percentile tables and luck checks (d100).
- Dice-pool systems such as World of Darkness / Vampire: The Masquerade.
- D&D weapons such as the halberd and heavy crossbow (1d10).
- A fair random draw from 1 to 10.
Is Zar Salla a fair dice roller?
Yes. Results come from your browser’s cryptographic random number generator (Web Crypto API, crypto.getRandomValues), and rejection sampling gives every face exactly the same probability. Nothing is sent to a server, nothing is decided in advance and no roll depends on the previous one.
Just like real dice, short streaks of the same number are normal. As you roll more, each face’s share gets closer to the expected value — you can watch this yourself in the “Stats” tab.
How many d10 do you want to roll?
Frequently asked questions
What is the average roll of a d10?
(1+…+10)/10 = 5.5.
Is the d10 a Platonic solid?
No. It is a pentagonal trapezohedron; the Platonic dice are d4, d6, d8, d12 and d20.
How do you roll a d100?
Roll two d10, one for tens and one for ones. 00 and 0 together count as 100.
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