Random Number List Generator
Generate a custom list of unique random integers within any specified range, with optional ascending sorting and instant summary calculations.
Run tool
Generate a set of distinct random integers across any custom numerical interval. This online tool lets you define the lower limit, upper limit, and exact count of numbers you want to produce without duplicates. By default, the generator creates 10 random integers between 1 and 100, presented in the initial random selection order. When you check the sort option, the resulting values are arranged automatically in ascending numerical order. In addition to listing the chosen integers, the generator computes summary statistics, including the overall sum and the arithmetic mean rounded to ten decimal places. All sampling operations evaluate whole-number equivalents of your inputs. To ensure valid output, specify a minimum value strictly lower than the maximum value and pick a quantity that does not exceed the total count of integers available in the defined range.
Instructions
- Enter the lower boundary in the Min Val field or keep the default value of 1.
- Enter the upper boundary in the Max Val field or keep the default value of 100.
- Specify how many unique numbers you want in the Count field.
- Check the Sort box if you want the generated values ordered from smallest to largest.
- Click the run button to generate your list of numbers and view the summary statistics.
Examples
- Draw 5 unique lottery numbers between 1 and 50 sorted in ascending order: set Min Val to 1, Max Val to 50, Count to 5, and check Sort.
- Pick 3 distinct random participant IDs from a group of 20: set Min Val to 101, Max Val to 120, Count to 3, and leave Sort unchecked.
FAQ
Can the generator produce duplicate numbers in a single run?
No. The tool selects distinct integers without repetition from the specified inclusive range.
What happens if the requested count is larger than the range?
The generation will not proceed if the requested count exceeds the total number of distinct integers available between the minimum and maximum boundaries.
How does the tool handle decimal numbers in the input fields?
Input values are converted to whole numbers before sampling, meaning the tool draws whole integers based on rounded integer boundaries.
Does sorting change the calculated sum or average?
No. Sorting reorders the displayed integers from lowest to highest without altering their individual values, total sum, or average.