Random Number 1 to 20
Generate a random number between 1 and 20 — the classic range for tabletop RPGs, D&D ability checks, and classroom number assignments. Each number has a 5% probability, matching the distribution of a standard 20-sided die (d20). Roll your digital d20 with cryptographic fairness.
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History
Common Uses
- ✓ D&D d20 ability checks and saving throws
- ✓ Tabletop RPG attack rolls
- ✓ Classroom number assignments
- ✓ Team drafts and player ordering
- ✓ Score generation for games
Frequently Asked Questions
Is this the same as rolling a d20 die?
Exactly. This generates numbers with the same uniform probability distribution as a perfectly fair 20-sided die — each number from 1 to 20 has a 5% chance. It's the perfect digital substitute for tabletop gaming.
Can I use this for Dungeons & Dragons?
Yes! This is a perfect digital d20 for ability checks, saving throws, attack rolls, and initiative. It uses cryptographic randomness that's actually fairer than physical dice, which can develop wear patterns over time.