Random Number Generator
Pick random numbers in any range. Choose how many, allow or block repeats, leave numbers out and sort the result.
1 to 100
?
Numbers or ranges, separated by commas.
History
Nothing yet. Results appear here.
How to use it
- Set the lowest and highest number. Both are included.
- Choose how many numbers you need and whether a number may repeat.
- Optionally list numbers to leave out, separated by commas.
- Press Generate, then copy the result.
Where people use it
Raffle tickets
Draw unique ticket numbers between 1 and the number of tickets sold.
Sampling
Pick 20 unique row numbers from a spreadsheet for a spot check.
Games
Guess-the-number, bingo calls or random page numbers.
Questions
Is every number equally likely?
Yes. Numbers are drawn with rejection sampling, which removes the small bias that the common “random % range” shortcut has.
How large can the range be?
Any whole numbers between −9,007,199,254,740,991 and 9,007,199,254,740,991.
How many unique numbers can I draw?
Up to 1,000 at once, as long as the range has enough numbers left after exclusions.