Click the number or press Generate — 9 possible outcomes
?The range 1 to 9 gives 9 equally likely outcomes with a 5 average. This range is used for D&D d9 rolls, rating scales, and decisions requiring up to 9 options. Each number has exactly 11.1% probability.
Probability: Each number from 1 to 9 has exactly 11.1111% probability on every roll. This is a discrete uniform distribution — there is no bias toward any particular value, and past results never influence future ones.
Common uses for this range: Scoring and rating scales, guessing games, classroom number picks, short lotteries.
This tool runs entirely in your browser. No data is sent to any server, no results are logged, and the generator re-seeds on every click.
Click the large number or press Generate. A random integer between 1 and 9 is selected with 11.11% probability for each value. You can also adjust the range using the fields above.
Yes. Math.random() in modern browsers uses a cryptographically seeded algorithm producing a uniform distribution. Each of the 9 integers between 1 and 9 has exactly equal probability.
The statistical mean of the range 1 to 9 is 5. Over many rolls, your results will converge toward this value. The standard deviation is approximately 2.58.
Use our Number Generator to generate up to 20 numbers at once with a no-repeats option — ideal for lottery picks and random sampling.