Random number generator with unique-number mode
Choose an inclusive minimum and maximum, request up to 100 integers and decide whether repeats are allowed. Every generated list is shown in order and can be reproduced from its shared link.
Inputs used by this calculator
Random Number Generator uses the fields below. The starting values reproduce the page example; replace them with values from the same units and time period before using the result.
| Input | Starting example | Accepted value | How it is used |
|---|---|---|---|
| Minimum integer | 1 | -1000000000 to 1000000000 | Supplies the minimum integer quantity used by the published equation or result breakdown. |
| Maximum integer | 100 | -1000000000 to 1000000000 | Supplies the maximum integer quantity used by the published equation or result breakdown. |
| How many numbers | 5 | 1 to 100 | Supplies the how many numbers quantity used by the published equation or result breakdown. |
| Allow duplicates | Yes | Yes · No | Supplies the allow duplicates quantity used by the published equation or result breakdown. |
How to generate random numbers
Enter whole-number bounds, choose the list length and press Generate numbers. The first generated value appears as the main result while the full ordered list appears below.
- Set the inclusive minimum.
- Set the inclusive maximum.
- Choose 1–100 results.
- Turn duplicates off for a sample without replacement.
Inclusive ranges
Both endpoints can appear. A range from 1 to 10 contains ten possible integers, while −5 to 5 contains eleven because zero is included.
range size = maximum − minimum + 1Duplicates and unique sampling
When duplicates are allowed, each draw is independent and a value may appear more than once. With duplicates disabled, values are removed after selection. The requested count cannot exceed the range size.
Limits and secure use
The generator limits lists to 100 values and bounds to plus or minus one billion so the output stays inspectable. It is intended for ordinary selection and simulation, not cryptographic secrets, regulated drawings or audited gambling.
What the Random Number Generator answers
Generate one or many random integers within an inclusive range, with optional unique values and a reproducible seed.
Use Random Number Generator when you know Minimum integer, Maximum integer, How many numbers and Allow duplicates and need the relationship expressed by the published equation.
Common range examples
| Use | Minimum | Maximum | Possible integers |
|---|---|---|---|
| Standard die | 1 | 6 | 6 |
| Percentage | 0 | 100 | 101 |
| Signed small range | −10 | 10 | 21 |
| Playing-card position | 1 | 52 | 52 |
Frequently asked questions
Are the minimum and maximum included?
Yes. Either endpoint may be generated.
Can I generate numbers without repeats?
Yes. Choose No under Allow duplicates; the requested count must fit inside the range.
Can the same shared link reproduce a list?
Yes. Generator settings and the seed are included in the link.
Can I generate negative integers?
Yes. The supported bounds extend from −1,000,000,000 to 1,000,000,000.
Is this suitable for passwords or gambling?
No. Use a dedicated audited system for security credentials, lotteries or regulated gambling.
What question does this Random Number Generator answer?
Generate one or many random integers within an inclusive range, with optional unique values and a reproducible seed.
What to keep in mind
Useful for games, sampling and classroom work. This browser tool is not certified for lotteries, gambling or security key generation.
Results are rounded for display in US format, with money in dollars and cents; CSV exports keep full calculation precision. This is a calculation summary, not an official certificate.