Press “Roll Dice” to roll three ten-sided dice at once; the total is between 3 and 30. The average total is 16.5 and the most likely total is 16 and 17 (each 7.5%).
Quick facts
- Dice
- 3 ten-sided dice (3d10)
- Total range
- 3 – 30
- Average total
- 16.5
- Most likely total
- 16 and 17 (75/1,000 ≈ 7.5%)
- All the same
- 10/1,000 ≈ 1%
- Highest total (30)
- 1/1,000 ≈ 0.1%
- Randomness
- Cryptographic, every face equally likely
3d10 total distribution
Three d10 have 1,000 equally likely outcomes. The extreme totals (3 and 30) can each be made only one way, while 16 and 17 can be made 75 ways — so the total clusters in the middle and extreme results are rare.
How do I roll?
- The dice roll automatically when the page opens. To roll again, press “Roll Dice”, tap the dice or hit the space bar.
- On a phone with “Shake to roll” enabled, just shake your device.
- Pick a die type from “Dice Types” in the top menu or the d4 – d20 tabs: roll 1–4 of a d4, d8, d10, d12 or d20, or 1–6 six-sided dice.
- Every roll is saved to “Roll History” with its total, and the “Stats” tab shows how often each face has come up.
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 of 3d10?
Each d10 averages 5.5, so 3 of them average 16.5.
What is the most likely total on 3d10?
16 and 17, with 75 of 1,000 outcomes (each 7.5%).
What are the odds that all three d10 match?
10/1,000 = 1%.
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