Random Number Generator 1 to 150
Pick a number between 1 and 150 at random. Every number has exactly the same 0.667% chance on every draw. Draw one, or up to 100 at once with no repeats.
Your number appears here.
The odds for 1 to 150, worked out
- Chance of any one number: 1 in 150 (0.667%)
- Average result over many draws: 75.5
- Same number twice in a row: 1 in 150
- Draws until a repeat is more likely than not: 15
SpinWave draws each number from your browser's cryptographic random source, with rejection sampling so no number in 1 to 150 is favoured. Results are independent. A long run without a particular number does not make it due.
What people use 1 to 150 for
- Picking one of the 150 psalms in the Book of Psalms.
- Drawing a winner from a raffle of 150 tickets.
How to use this generator
The range on this SpinWave page is already set to 1 to 150. Press Generate for a single number, raise How many to draw several at once, and tick No repeats if nobody should win twice. For any other range, the full random number generator takes whatever minimum and maximum you like. If an audience needs to watch the draw happen, the spin the wheel picker shows it on screen.
Other number ranges
Random number 1 to 150: FAQ
What are the chances of getting a specific number between 1 and 150?
Exactly 1 in 150, or 0.667%. Every draw is independent, so a number that just came up is no more or less likely next time.
How many draws before a number between 1 and 150 repeats?
With repeats allowed, a repeat becomes more likely than not by draw 15. Tick No repeats to draw up to 100 different numbers in one go.
Does the generator include both 1 and 150?
Yes. Both ends of the range are included, so 1 and 150 can each come up. The average result over many draws is 75.5.