Random Number Generator 1-100
Calculator Use
Generate a random number between 1 and 100. Includes a pick counter for multiple draws.
This is a pseudo-random number generator (PRNG) that randomly draws one number at a time from the range of numbers 1 to 100. Each pick is independent of any other pick, meaning each number has an equal chance of being drawn during any given pick.
Quickly Generate a Random Number 1-100
This random number generator has predefined settings to allow you multiple number picks in a short amount of time.
Range: The range of numbers that the generator picks from is set at the numbers from 1 to 100.
Quantity: Exactly one number is generated at random on each pick.
Repeats: Each pick is independent from the prior pick or the next pick. This means the calculator always randomly picks from a set of 100 numbers, from 1 to 100. So with multiple picks you could theoretically see the same number randomly generated multiple times.
Related Random Number Generators
If you would like to specify range, quantity of numbers generated, and whether repeats are allowed see our customizable Random Number Generator.
For a simple, small-set random number generator see our Random Number Generator 1-10.
How to Calculate Probability of Drawing 1 of 100
There are 100 numbers in the range 1 to 100. The probability of any number being drawn at random can be expressed in these terms:
- as a ratio, 1 in 100
- as a division problem, 1/100
- as a decimal, 0.01
- as a percentage, 1%
Each of these terms mean the same thing. So if you have a set of 100 numbers, the chance that any number is drawn at random will be 1 out of 100, or 1%.