Random Number 1-100
The classic guess-a-number range, the raffle standard, the percentile roll: 1 to 100 covers them all. One click gives you a fair pick with every number at exactly 1%.
Generate several numbers at once
Need a batch? Set how many numbers you want (up to 100) and get them in one click. Each is an independent draw, so the same number can appear twice — that is what fair randomness looks like. For a set of distinct numbers, draw one at a time and skip repeats.
About the 1 to 100 Range
A hundred options hits a different scale of usefulness than ten: it's a percentage, a percentile die, a raffle of realistic size. It's also where randomness starts to get counterintuitive — streaks, gaps, and repeats show up in ways that surprise people, which makes this range a favorite for classroom probability demos.
Need a Different Range?
Try 1–10 for quick picks, 1–1000 for bigger draws, or set any custom range with the full random number generator.
Frequently Asked Questions
How does the 1-100 random number generator work?
Each click selects a whole number from 1 to 100, with every number having an equal 1% chance. Each pick is independent of the ones before it.
What are common uses for a random number between 1 and 100?
Raffles and giveaways with up to 100 entries, guess-the-number games, percentage-based decisions, picking a random page from a book, classroom probability experiments, and percentile dice rolls in tabletop games.
How many clicks until every number appears?
Longer than you'd think! Because picks are independent, collecting all 100 numbers takes about 519 clicks on average — a classic probability result known as the coupon collector problem.
Can I use this instead of percentile dice?
Yes — one click is exactly equivalent to rolling d100 (percentile dice) in tabletop games. Every result from 1 to 100 has the same 1% probability as two ten-sided dice read as tens and ones.