Random Number Generator

Last updated: Math Calculators

Random Number Generator

About This Calculator

This Random Number Generator allows you to generate one or more random integers within a custom number range. It supports duplicate and non-duplicate outputs, making it useful for simulations, sampling, lottery draws, classroom exercises, and programming tasks.

How to Use

  1. Choose whether to allow duplicate numbers or require all results to be unique.
  2. Enter the minimum and maximum values for the range (inclusive).
  3. Specify the quantity of numbers to generate.
  4. Click "Generate" to get your random numbers and the sorted version.

For non-duplicate generation, make sure the quantity does not exceed the range size.

Frequently Asked Questions

What is the difference between allowing duplicates and not?

If you allow duplicates, the same number can appear more than once in the result. If not, all generated numbers will be unique and randomly selected without repetition.

What is the maximum range or quantity I can use?

There is no fixed limit, but for non-duplicate results, the quantity must not exceed the total number of integers in the selected range (i.e., max − min + 1).

What format are the results shown in?

The random numbers are displayed as a comma-separated list. If you generate more than 5 numbers, the result will use a multiline text area for better readability. A sorted version is also provided below the raw output.

Can I generate negative numbers?

Yes, both the minimum and maximum values can be negative or positive, as long as the minimum is less than or equal to the maximum.