CalcPenguin

Random Number Generator

Pick one or many random whole numbers between any two values, with or without repeats. Share the link and everyone sees the same draw.

Your numbers are saved in this browser.

Change this to draw again. The same draw number always gives the same result, so a shared link shows everyone the same draw.

Your number

47

Draw 1 picked 47 from 1 to 100.

How it's worked out

  1. Range1 to 100100 possible numbers
  2. Chance of any one number1 ÷ 100 each draw1%
  • Fine for games, raffles among friends and classroom picks. Not for anything that needs a certified or cryptographic draw.

How it works

The draw number seeds a fixed number generator, so a draw can be repeated and checked. Without repeats, it shuffles the range and takes the first picks.

Example

Drawing 10 numbers from 1 to 10 with no repeats gives every number once, in a shuffled order.

Questions people ask

How do I draw again?

Change the draw number. Each draw number gives its own result, and the same number always gives the same result.

Can I pick numbers with no repeats?

Yes. With no repeats, each number can come up once, like drawing tickets from a hat.

Is it fair enough for a prize draw?

It's fine for games, classrooms and draws among friends. Official lotteries and anything with legal rules need a certified draw.

Formula and rules last checked 25 October 2026Written and tested by the CalcPenguin teamReport a problem