Random Number Generator from 0 to 99

Random Number Generator
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Random number between 0 and 99?

any of the 100 whole numbers from 0 to 99, each with a 1% chance

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The Range 0–99 in Numbers

N = 99 − 0 + 1 = 100
P = 1 ÷ 100 = 1%
Whole numbers in the range 100
Chance of each number 1 / 100 = 1%
Even / odd numbers 50 / 50
Chance of an even number 50 / 100 = 50%
Draws for a particular number to reach a 50% chance 69

With repeats allowed, each draw misses a particular number with probability 1 − 1/100, so after k draws it has appeared at least once with probability 1 − (1 − 1/100)k. That first reaches 50% at k = 69.

100 equally likely outcomes — the same odds as a percentile roll, where two ten-sided dice are read as tens and units.

Related Calculations

See Also

Random Number Generator

This generator picks a random whole number between two bounds, both of them included. The number is drawn in your browser from its cryptographic random source, and every number in the range has the same chance. For example, it can help you find out random number between 0 and 99? Enter the lower bound (e.g. '0') and the upper bound (e.g. '99'), then press 'Generate'. On the result page you can draw several numbers at once, with or without repeats.
Random Number Generator
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Neighbouring Ranges

RangeWhole numbersChance of each number
1–8484≈1.19%
1–8585≈1.18%
1–8686≈1.16%
1–9090≈1.11%
1–9292≈1.09%
1–9898≈1.02%
1–9999≈1.01%
0–991001%
1–1001001%
0–100101≈0.99%
1–101101≈0.99%
100–200101≈0.99%
1–102102≈0.98%
1–103103≈0.97%
1–106106≈0.94%

FAQ

Random number between 0 and 99?

It can be any of the 100 whole numbers from 0 to 99, each with a 1% chance

How many numbers are there from 0 to 99?

100 whole numbers: 99 − 0 + 1 = 100, because both bounds are included. Even numbers among them: 50, odd: 50 — so an even result comes up with a 50% chance.

How many draws does it take to get a particular number from 0 to 99?

With repeats allowed, a particular number has at least a 50% chance of appearing once it has been given 69 draws; after 68 draws the chance is still below 50%. Each draw is independent, so earlier misses do not make it «due».

How to pick several different numbers from 0 to 99?

Set how many numbers you need and tick «No repeats». The generator then draws without replacement, so you can get up to 100 different numbers — the whole range in random order.

What has the same odds as a random number from 0 to 99?

100 equally likely outcomes — the same odds as a percentile roll, where two ten-sided dice are read as tens and units.

See Also