Roll 1d20
Roll a single twenty-sided die.
Ready to roll 1d20
Die
Quantity
Modifier
1d20 · Twenty-Sided Die
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The odds on 1d20
- Lowest
- 1
- Highest
- 20
- Average
- 10.5
- Most likely
- 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20
1d20 lands between 1 and 20. The most common result is 1 or 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 or 16 or 17 or 18 or 19 or 20, which comes up 5% of the time, and the average across many rolls is 10.5.