Includes your inputs and results for this calculation, plus any additional calculations you've compared.
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The link includes your inputs and results, so anyone who opens it sees this exact calculation.
How This Calculator Works
A random number generator picks one or more whole numbers uniformly at random from a range you
choose. Enter a minimum and maximum, how many numbers you want, and whether repeats are allowed,
and this calculator generates them instantly — useful for picking a raffle or giveaway winner,
settling a decision, drawing lottery-style numbers, or generating test data.
Unlike every other calculator on this site, the result here is deliberately not reproducible
from the inputs alone — a shared link restores your settings (minimum, maximum, count, and
whether repeats are allowed) so a friend can generate their own numbers with the same setup, but
it won’t hand them the exact same numbers you got. That’s the entire point of a random number
generator: running it again is supposed to give you something new.
How It Works Under the Hood
Each number is chosen uniformly at random from every whole number between your minimum and
maximum, inclusive — every value in the range has an equal chance of being picked. When “no
repeated numbers” is checked, this calculator keeps drawing until it has enough distinct values,
the same approach as physically drawing numbered balls from a bag without putting them back.
Common Uses
Picking a winner from a numbered list of raffle or giveaway entries.
Drawing lottery-style numbers for games that pick several numbers from a range.
Settling a decision — rolling a virtual die (1-6), flipping a coin (1-2), or picking
between a few options.
Generating sample or test data for a spreadsheet or a coding project.
Cómo funciona esta calculadora
Un generador de números aleatorios elige uno o más números enteros de manera uniformemente
aleatoria dentro de un rango que tú eliges. Ingresa un mínimo y un máximo, cuántos números
quieres y si se permiten repeticiones, y esta calculadora los genera al instante — útil para elegir
al ganador de una rifa o sorteo, tomar una decisión, sortear números de estilo lotería, o generar
datos de prueba.
A diferencia de cualquier otra calculadora de este sitio, el resultado aquí deliberadamente no
es reproducible a partir de los datos ingresados por sí solos — un enlace compartido restaura tu
configuración (mínimo, máximo, cantidad, y si se permiten repeticiones) para que un amigo pueda
generar sus propios números con la misma configuración, pero no le entregará los mismos números
exactos que tú obtuviste. Ese es todo el propósito de un generador de números aleatorios: se supone
que ejecutarlo de nuevo te dará algo nuevo.
Cómo funciona internamente
Cada número se elige de manera uniformemente aleatoria entre todos los números enteros dentro de
tu mínimo y máximo, inclusive — cada valor del rango tiene la misma probabilidad de ser elegido.
Cuando está marcada la opción “sin números repetidos”, esta calculadora sigue extrayendo números
hasta tener suficientes valores distintos, el mismo enfoque que sacar físicamente bolas numeradas
de una bolsa sin devolverlas.
Usos comunes
Elegir un ganador de una lista numerada de participantes en una rifa o sorteo.
Sortear números de estilo lotería para juegos que eligen varios números dentro de un rango.
Tomar una decisión — lanzar un dado virtual (1-6), lanzar una moneda (1-2), o elegir entre
varias opciones.
Generar datos de muestra o de prueba para una hoja de cálculo o un proyecto de programación.
Yes — check "No repeated numbers" to generate a set of distinct values, useful for picking multiple raffle winners or drawing lottery-style numbers where the same number shouldn't appear twice.
Will a shared link give someone the same numbers I got?
No — a shared link restores your settings (minimum, maximum, count, and whether repeats are allowed) so someone else can generate their own numbers with the same setup, but the actual numbers generated are different every time by design. That's the entire point of a random number generator.
Is this truly random?
It uses your browser's built-in random number generator, which is suitable for everyday uses like picking a winner or settling a decision. It isn't a cryptographically secure random source, so it shouldn't be used for security-sensitive purposes like generating passwords or encryption keys.
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