Random Number Generator
Generate random numbers within specified ranges. Perfect for games, contests, assignments, and ensuring fair selections.
Generate Random Numbers
Generated Numbers
Click "Generate" to create random numbers
Recent Generations
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Disclaimer
Generated numbers are random but not suitable for cryptographic security unless secure mode is enabled. This tool uses pseudo-random algorithms which are appropriate for games, contests, and general purposes but not for security-critical applications.
What Is a Random Number Generator?
A random number generator is a tool that produces a number without any predictable pattern. People use it for games, classroom activities, giveaways, testing, and decision-making.
Instead of picking numbers manually or guessing, this tool ensures fairness and saves time.
Why People Use Random Number Generators
Random numbers help remove bias. Whether you are selecting a winner, assigning groups, or testing software, randomness keeps things fair. A reliable generator ensures every number in the range has the same chance of appearing.
How This Random Number Generator Works
You choose a minimum and maximum number, and the calculator randomly selects a value within that range. Each click produces a new result, independent of the previous one.
You don't need technical knowledge. The generator handles the logic in the background.
Formula Used in This Random Number Generator
Basic Random Number Formula
Random Number = floor(Math.random() × (Max − Min + 1)) + Min
Where:
- •
Math.random()generates a decimal between 0 and 1 - •
Minis the lowest allowed number - •
Maxis the highest allowed number
This formula ensures equal probability for every number in the selected range.
Random Number Range Samples
| Min | Max | Possible Results |
|---|---|---|
| 1 | 10 | 1 to 10 |
| 5 | 20 | 5 to 20 |
| 100 | 500 | 100 to 500 |
Multiple Number Generation
| Quantity | Range | Sample Output |
|---|---|---|
| 1 | 1–10 | 7 |
| 3 | 1–50 | 12, 34, 5 |
| 5 | 100–200 | 142, 188, 109, 165, 130 |
Who Should Use This Calculator?
- Teachers assigning random rolls
- Gamers selecting winners
- Developers testing random scenarios
- Anyone making unbiased decisions
This tool is simple enough for beginners and flexible enough for advanced users.
Final Thoughts
Random numbers may seem simple, but fairness matters. This calculator is designed to be fast, clear, and reliable so you can focus on what you need the number for, not how it was generated.