Random Number Generator
This random number generator is useful for classroom activities, games, raffles, practice problems, and quick sampling.
Choose a minimum and maximum, the number of values to generate, and whether you want integers or decimals.
You can also request unique whole numbers when the range allows it.
The result returns a list you can copy or regenerate.
Assumptions
- Unique mode works best for whole numbers in a reasonably large range.
- Decimal mode can repeat values because duplicates are extremely unlikely but still possible.
- Refresh or reset to generate a different random list.
How this calculator works
Formula used
Each random value is selected from the chosen range, using integer or decimal logic depending on your mode setting.
Example calculation
If you generate 5 whole numbers from 1 to 20, the page returns five random values in that interval.
Random Number Generator FAQ
Is this random number generator exact?
It is designed as a practical estimate or classroom calculator for random number generator. Results can differ if your teacher, textbook, software, or engineering workflow uses different assumptions, notation, or precision.
Who should use this random number generator?
Students, parents, teachers, and everyday users can use it for homework checks, class review, exam prep, and quick planning calculations on a desktop or phone.
Does this replace official coursework, lab software, or professional tools?
No. These pages are educational calculators for learning and general use. For graded work, lab reports, engineering decisions, or research, verify the result with your course method or professional software.