What can I use a 1-20 random number generator for?

Perfect for board games with d20 dice, classroom activities, picking volunteers, and any situation requiring a random number from 1-20.

Random Number 1-20

Generate a random number between 1 and 20. Ideal for board games, classroom activities, and quick random selections. Fast, secure, and free.

Press to Generate

Min

Max

Count

Step

Precision

Sort

Unique (no repeats)

Embed & Share▼

<iframe
  src="https://numbergenerator.ai/1-20/?min=1&max=20&count=1"
  title="Random Number 1-20"
  width="100%"
  height="600"
  frameborder="0"
  style="border:1px solid #e5e7eb;border-radius:12px;"
  loading="lazy"
  allow="clipboard-write"
></iframe>

Paste this code into your website to embed the Random Number 1-20 tool. The iframe will automatically adapt to mobile screens.

About this tool

This tool uses a cryptographically secure pseudo-random number generator (CSPRNG) to ensure fairness and security.

Tip: press Space to generate again.

About Random Number 1-20

Generate a random number between 1 and 20. Ideal for board games, classroom activities, and quick random selections. Fast, secure, and free.

How to Use Random Number 1-20

1Click generate for a number 1-20
2Use for games or activities

Features

Game-friendly range
Instant results
Secure random

Frequently Asked Questions

What can I use a 1-20 random number generator for?: Perfect for board games with d20 dice, classroom activities, picking volunteers, and any situation requiring a random number from 1-20.

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Secure & Private

All generation happens locally in your browser using Web Crypto API (CSPRNG). Your data never leaves your device. No tracking, no storage, complete privacy.