Random Number Generator

Generate random numbers within a specified range

About Random Number Generator

A random number generator produces a number, or a set of numbers, within a range you choose, using a source of randomness rather than a formula tied to specific inputs. It's used for games, giveaways, sampling, testing, and any situation calling for an unpredictable, unbiased pick.

Formula

Random Number = Minimum + (Random Decimal × (Maximum − Minimum))

How It Works

Enter your minimum and maximum values
Choose whether to allow decimals or whole numbers only
Choose whether you want a single number or a list of unique numbers
The generator produces a uniformly distributed random number within your range

Tips

Uniform distribution means every number in the range has an equal chance of being picked
For picking unique values (like raffle winners), use 'no repeats' mode so no number is generated twice
For true unpredictability in high-stakes situations (lotteries, cryptography), dedicated hardware random number generators are used instead of software pseudo-random generators

Frequently Asked Questions

Is this a truly random number generator?

It uses a pseudo-random number generator (PRNG), which is unpredictable enough for everyday use like games, sampling, and giveaways, but not cryptographically secure — don't use it for security keys or high-stakes gambling systems.

Can I generate multiple unique random numbers at once?

Yes — select the 'unique/no repeats' option and specify how many numbers you need; the generator excludes any number already picked from being selected again.

How do I generate a random number without decimals?

Choose 'whole numbers only' — the generator will round to the nearest integer within your specified range.

What's the difference between random and shuffled?

A random number generator picks one or more values from a range; shuffling reorders an existing list into a random sequence — both use similar randomness but solve different problems.

Can I set a specific range, like 1 to 100?

Yes — enter any minimum and maximum, including negative numbers or decimals, and the generator restricts output to within that range.