random number 1 to 40

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Random number from 1 to 40

Forty values are loaded: press Generate and you get one number from 1 to 40, each with a 2.5% chance. Forty is a common size for a large class, a coach party, a youth group or a long quiz, and it is the number of cards in the Spanish and Italian card decks used for games like brisca and scopa.

Ways to use a number from 1 to 40

  • Large groups. Number everyone on the list and pick a volunteer, a room-mate pairing or the order of turns.
  • A 40-question quiz. Pick which question to ask next so the order is different every time you run it.
  • A 40-card deck. Without the deck at hand, numbers 1 to 40 can stand for its cards: 1 to 10 for the first suit, 11 to 20 for the second, and so on.
  • Forty-day plans. Lent lasts forty days, and many reading or habit plans follow the same length. Pick a day or a task at random.

Turning a number into a card

To read a number from 1 to 40 as a card in a four-suit deck of ten cards each, divide by ten. Numbers 1 to 10 belong to the first suit, 11 to 20 to the second, 21 to 30 to the third and 31 to 40 to the fourth. The last digit gives the card within the suit, with 0 standing for the tenth card. Turn on No repeats if you deal several cards from the same deck, since a real deck has no duplicates.

For a 52-card deck, use the 1 to 52 page, or let the card tool deal real cards on screen.

Picking several numbers from 1 to 40

40 possible numbers. What changes when you pick more than one at a time:

Numbers pickedA given number is among them (No repeats on)At least one number twice (No repeats off)
12.5%0%
25%2.5%
37.5%7.4%
512.5%22.9%
1025%70.7%
2050%99.7%

How it works

  1. The range is set

    The lowest and highest numbers for this page are already in the sentence at the top, and both can come up. Nothing to type before your first pick.

  2. Pick your number

    Press Generate or the Space bar, or tap the number. The reel rolls like a slot machine and stops on the result.

  3. Change it if you need to

    Tap how many numbers you want in the sentence to get up to 20 at once; No repeats keeps them all different. Tap either end of the range to type a new one.

Any suggestions for improvement?

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Ready-made versions

Random numberNumber 1 to 100Number 1 to 10Number 1 to 6Number 1 to 20Number 1 to 50Number 1 to 1000Number 1 to 3Number 1 to 4Number 1 to 5Number 1 to 8Number 1 to 12Number 1 to 15Number 1 to 25Number 1 to 30Number 1 to 31Number 1 to 49Number 1 to 52Number 1 to 60Number 1 to 75Number 1 to 90Number 1 to 200Number 1 to 365Number 1 to 5001 to 10,000

Questions

What is the chance of a given number from 1 to 40?

2.5%, one in forty, on every press.

How do I deal several cards from a 40-card deck?

Tap “a number”, choose how many cards you need and turn on No repeats, so the same card cannot come up twice.

Can the same number come up twice in a row?

Yes. Each press is independent, so a repeat on the next press has the same one in forty chance as any other number.

Is the random number generator free?

Yes. It is free to use, funded by advertising, with no account and no app to install.

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