It takes one tap. What you do with it is where things get interesting.
The quickest way to get a random number between 1 and 100 is to open the Random Number Generator and press Generate. That’s it. No setup, no sign-up, and the answer is on your screen in a moment. But stick around, because that one button can do a lot more than you might expect.
Need a random number between 1 and 100? It takes one tap
The tool starts on 1 to 100, because that’s what most people are looking for. So if all you need is a single number, you already have everything you need.
Everything else in this guide is a bonus: drawing lots of numbers at once, ruling out the ones you don’t want, turning a result into Roman numerals, and using all of it to run a raffle or settle who goes first.
How to pick a random number between 1 and 100
Here’s the whole process:
- Open the Random Number Generator.
- Check the line above the result. It should read “one number, range 1 to 100”, which is how the tool starts.
- If the range has been changed on an earlier visit, tap the 1 to 100 preset in the Settings tab. On a phone, tapping Settings opens the options.
- Press Generate. On a keyboard, Space or Enter does the same job.
- Need another? Press Generate again.
Every number from 1 to 100 has exactly the same chance of coming up: 1 in 100. It doesn’t matter what came up last time.
Need more than one number? Draw up to 100 at once
A random number picker earns its keep when you need a whole set. In Settings, change How many numbers to anything from 1 to 100, or tap 5, 10 or 100 for a shortcut.
A few things become available as soon as you ask for more than one:
- No repeats is on by default, so you get unique random numbers, like pulling numbered tickets from a bag. Untick it if the same number is allowed to come up again.
- Sort puts the draw in order, lowest first.
- Copy all copies the whole list, ready to paste into a message or spreadsheet.
- Sum and average appear under the draw, with no calculator required.
Here’s a handy trick: ask for 100 numbers from 1 to 100 with No repeats on, and you get every number exactly once, in a completely shuffled order.
One thing to remember is that No repeats applies to a single draw. Press Generate a second time and it’s a brand new draw, so a number from the first one can come up again. If nothing may ever repeat, get all your numbers in one go.
Beyond 1 to 100: the options most people never find
The 1 to 100 setting is only where this random number generator begins. You can pick a random number between two numbers of your choice, and open More options in the Settings tab to shape exactly which numbers can appear.
- Any range. Type your own Minimum and Maximum, using whole numbers from −1,000,000,000 to 1,000,000,000. Picking a year between 1950 and 2000 takes a few seconds.
- Presets. One tap gives you 1 to 10, 1 to 100, 1 to 1,000 or Class of 30.
- Decimal places. Need a random decimal? Choose up to 4 places. With 2 places, 0 to 1 gives 101 equally likely values, from 0.00 to 1.00.
- Order. Show numbers as drawn, lowest first or highest first.
- Leave out these numbers. Type them with commas between, such as 13, 66. Superstitious players, this one’s for you.
- Even or odd. Want a random even number? There are 50 even numbers from 1 to 100, so each comes up 1 time in 50.
- Only multiples of. Type 5 and you’ll get 5, 10, 15 and so on up to 100. That’s 20 possible results.
- Show as. Under the result, switch between Digits, Words, Roman, Binary and Hex.
Two small limits: Even or odd and Only multiples of work with whole numbers only, and Roman numerals work for 1 to 3999.
The important part is that none of these settings makes the pick any less fair. They only change which numbers are in the running, and every number left has the same chance as the others.
The fun extras worth trying
Once you’ve got the numbers you came for, there’s a surprising amount to play with:
- Call it. Type a guess before you generate. On 1 to 100 you’ve got a 1 in 100 chance, so getting it right feels great.
- Number notes. Some results come with a little comment. Land on 42 and the tool calls it “the answer to everything”. Land on 100 and it’s “a perfect score, and a century”.
- Awards. Collect them for rare results, such as drawing the lowest or highest possible number.
- History. Look back at earlier draws, or export them as a CSV file.
- Share. Turn a result into a picture you can send to someone.
- Clean mode. Hide everything but the numbers, which is ideal on a classroom screen.
- Embed it. Add the free widget to your own website.
- Languages. Use it in English, Spanish, French or Arabic.
Ten clever ways to use a random number between 1 and 100
Here’s where a free random number generator goes from handy to genuinely useful.
1. Play guess the number. Everyone writes down a guess and the closest wins. Playing alone or taking turns? Use Call it to lock in a guess before you press Generate.
2. Make a percentile roll. Plenty of tabletop games ask for a number from 1 to 100 to decide whether something happens. The default range does the same job as a d100. If you’re not sure what that means, Every Die Explained covers it, and Roll a Dice handles the rest of your dice.
3. Make a decision with percentages. Want something to have a 30% chance of happening? Decide that any result from 1 to 30 means yes. It’s a neat way to add a bit of chance to “shall we get takeaway tonight?”
4. Run a raffle or giveaway. Give each ticket a number and set the Maximum to the number of tickets sold. Picking several winners? Set How many numbers to match and keep No repeats on. Our guide to picking a raffle winner online has tips for making the draw feel trustworthy.
5. Pick students in class. Number your register and tap Class of 30, or set your own Maximum. To get through the whole class without calling anyone twice, set How many numbers to 30 with No repeats on, then work along the list.
6. Practise maths. Draw two numbers and add them in your head, then check your answer against the sum underneath. Older students can use Show as to practise reading Words, Roman numerals or Binary.
7. Decide turn order or teams. Got eight players? Set the range to 1 to 8, ask for 8 numbers with No repeats on, and leave the order as drawn. That’s your running order. For teams of four, the first four numbers are one team and the rest are the other.
8. Do a spot check. Need to review 10 out of 100 records, survey responses or stock items? Ask for 10 numbers with No repeats on, then press Sort so you can work through them in order. It’s a quick way to stop yourself choosing only the easy ones.
9. Choose from a numbered list. Number your watchlist, recipe collection, reading pile or workout routines, then let the tool end the debate about what’s next.
10. Find a creative prompt. Stuck? Let a number choose a page in a book, a line on that page, or an idea from your notes, and start from there.
Picking names instead of numbers? Spin the Wheel is made for it. Only two options? Flip a Coin. Calling a full game of numbers for a crowd? That’s a job for the Bingo Caller.
Is a random number between 1 and 100 actually fair?
It’s a fair question, especially if you’ve just seen the same number twice.
Every number is drawn using your browser’s secure random number generator, in a way that makes every allowed number exactly as likely as every other. The result is decided before the animation starts, so the spinning reels are only there for fun. Your numbers stay on your device too. The page’s anonymous analytics count how often Generate is pressed and how many numbers were asked for, never the numbers themselves.
Repeats can still look suspicious, so it’s worth knowing how normal they are. Draw ten numbers from 1 to 100 with repeats allowed, and at least two will match about 37% of the time. And a number is never “due”. If 57 hasn’t come up all afternoon, it’s no more likely to appear next. For more on why fair results can look so odd, see our guide to true randomness and pseudorandomness.
One honest caveat: a fair tool isn’t the same as a certified one. Your history and CSV export record what happened on your device, but they aren’t proof of a fair draw. If you’re running a regulated competition or lottery, check what the rules require.
Frequently asked questions
How do I pick a random number between 1 and 100?
Open the Random Number Generator and press Generate. It starts on 1 to 100, so there’s nothing to set up.
Is the random number generator fair?
Yes. Each number uses your browser’s secure random number generator, and every allowed number has exactly the same chance.
Can I generate several random numbers with no repeats?
Yes. Set How many numbers to anything up to 100. No repeats is on by default, so every number in that draw will be different.
Can I change the number range?
Yes. Type your own Minimum and Maximum, or tap a preset such as 1 to 10 or 1 to 1,000.
Can I leave out certain numbers or pick only even numbers?
Yes to both. Open More options, then list the numbers you want to leave out, or set Even or odd to Even only.
Why did the same number come up twice?
Because each draw is independent, so repeats happen naturally. If they came up in the same draw, turn on No repeats. If they came up across two separate draws, get all your numbers in one draw instead.
A simple tool with plenty of surprises
Getting a random number between 1 and 100 really does take one tap. But it’s nice to know the rest is there when you need it: a shuffled list, a raffle draw, a maths warm-up, or a 30% chance of takeaway.
Open the Random Number Generator, press Generate, and see what comes up. If it’s 42, you’ve got your answer to everything.