What does this random number generator do?

This random number generator creates numbers inside the range you define. You can generate a single result or a list of results, depending on the count you enter.

The tool supports integer mode and decimal mode. In integer mode, you can allow duplicates or request unique numbers when the selected range is large enough. In decimal mode, you can choose how many decimal places to show.

How do minimum and maximum values work?

The minimum and maximum values define the range from which numbers can be generated. For example, if the minimum is 1 and the maximum is 100, generated values stay within that range.

In integer mode, the range is used for whole numbers. In decimal mode, the minimum and maximum values may be decimal values. The minimum value must not be greater than the maximum value.

• An empty or invalid minimum value prevents normal output.
• An empty or invalid maximum value prevents normal output.
• The result count must be an integer from 1 to 1,000.

When should you use integer mode?

Integer mode is used when every result should be a whole number, such as 1, 2 or 3. It is the right mode for choosing student numbers, generating values from 1 to 100, or creating a simple list of whole-number results.

For example, with minimum 1, maximum 10 and count 5, the generator returns 5 integers in that range. If duplicates are allowed, the same number may appear more than once.

When should you use decimal mode?

Decimal mode is used when you need values such as 0.27 or 4.135 rather than whole numbers. It is useful for examples, simulations, practice data or simple numerical experiments.

For example, if the range is 0 to 1, count is 3 and decimal places is 2, possible outputs include 0.27, 0.84 and 0.13. New results can appear each time you generate numbers.

What is the difference between duplicates and unique numbers?

When duplicates are allowed, the same integer may appear more than once. When unique numbers are requested, each generated integer must be different.

For example, asking for 5 unique integers between 1 and 10 is possible. Asking for 10 unique integers between 1 and 5 is not possible, because that range contains only 5 different integers.

Does sorting change the random draw?

Sorting does not change which numbers were generated. It only changes how the generated results are displayed after generation.

• No sort: keeps the generated order.
• Ascending: displays results from smallest to largest.
• Descending: displays results from largest to smallest.

This matters when you want to preserve draw order for a record, or sort the list for easier reading.

What is the copy-friendly output for?

The copy-friendly output gives the generated numbers in a compact text form. This makes it easier to paste the result into notes, a spreadsheet, a message or a document.

When the result list is large, the interface may switch from many visual chips to a compact scrollable text block. This is a display choice to keep the page usable on mobile screens.

Practical examples

A random number generator is useful when you need quick, neutral-looking numerical selection for ordinary tasks, practice material or testing.

• Generate 3 student numbers between 1 and 30.
• Create 10 decimal sample values between 0 and 1.
• Generate 20 numbers between 1 and 100 with duplicates allowed.
• Generate 5 unique numbers between 1 and 50 and sort them ascending.

Why official raffles and security use stronger methods

This calculator is a general-purpose random number tool. It is not an audited raffle system, official lottery mechanism, gambling tool or legally certified drawing process.

How it relates to combinations and permutations

Generating random numbers selects actual values, while combinations and permutations calculate how many different selections or arrangements are possible.

If you want to know how many ways there are to choose 3 values from 10, that is a combination question. If the order of the chosen values matters, it becomes closer to a permutation question.

Common mistakes

The most common mistake is requesting more unique integers than the range can provide. Another common mistake is assuming that sorting changes the random generation itself.

• You cannot generate 10 unique integers from the range 1–5.
• Ascending or descending sorting is only a display option.
• Decimal mode does not support unique-number mode.
• This generator does not predict lottery results.
• The count limit is 1,000 results.

Limitations of the calculator

The calculator supports everyday random number generation within clear limits: up to 1,000 results, integer or decimal mode, optional unique integers, sorting and copy-friendly output.

• The maximum result count is 1,000.
• Unique mode is available for integers only.
• Decimal results are rounded to the selected number of decimal places.
• There is no seed option for reproducible generation.
• The calculator does not support weighted selection, random names, random teams, random dates or dice simulation.