Ways to use a 1–100 number generator
Raffles up to 100 entries
Number your entries 1 to 100, set how many winners you need and keep “No repeats” on so nobody wins twice.
Guess my number
One player generates a secret number; the others guess while you answer “higher” or “lower”.
Classroom picks
Assign each student a number and pick who answers next, or draw random page numbers for reading practice.
Quick percentages
Each number is a 1% chance, so a result of 1–25 can mean “25% chance” in games and simulations.
The guessing-game strategy
In “guess my number” between 1 and 100, you never need more than 7 guesses. Always guess the middle of the range that's left: 50, then 25 or 75, and so on. Each guess halves the possibilities, and 2⁷ = 128 is more than 100.
How fair is it?
Every whole number from 1 to 100, including both ends, has exactly the same 1% chance of being picked. Need a different range? Change the From and To fields, or open the full Random Number Generator.
Frequently asked questions
Are 1 and 100 included?
How do I pick several different numbers?
Can I get the numbers in order?
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