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Generator Hut

Random Even Number Generator

Random even numbers in any range, plus the full list from 1 to 100.

Generator settings

Between 1 and 10,000.

Both ends are included in the results. Negative numbers are allowed.

No number repeats within a batch.

Generated numbers

Your numbers will appear here. Press Generate to start.

Generate random even numbers — values divisible by two — between any two bounds. Useful for splitting groups into pairs, assigning alternating slots, building teaching examples, or any time an odd number would break what you are doing. The complete list of even numbers from 1 to 100 is on this page too.

Every match from 1 to 100

There are 50 of them, listed in full below. The generator above draws from exactly this set, so every result you get is one of these — and each is equally likely.

  1. 2
  2. 4
  3. 6
  4. 8
  5. 10
  6. 12
  7. 14
  8. 16
  9. 18
  10. 20
  11. 22
  12. 24
  13. 26
  14. 28
  15. 30
  16. 32
  17. 34
  18. 36
  19. 38
  20. 40
  21. 42
  22. 44
  23. 46
  24. 48
  25. 50
  26. 52
  27. 54
  28. 56
  29. 58
  30. 60
  31. 62
  32. 64
  33. 66
  34. 68
  35. 70
  36. 72
  37. 74
  38. 76
  39. 78
  40. 80
  41. 82
  42. 84
  43. 86
  44. 88
  45. 90
  46. 92
  47. 94
  48. 96
  49. 98
  50. 100

Why use this tool?

Never an odd result

The generator draws only from even values, so you never have to filter results afterwards or re-roll when an odd number appears.

Any range, including negatives

Even numbers work in both directions: -8 and -42 are as even as 8 and 42. Set a negative minimum and the full range is covered.

The full list included

All fifty even numbers from 1 to 100 are listed on this page as plain text, so you can read or copy them without generating anything.

Private and free

Generation runs in your browser using the Web Crypto API. Nothing is sent to a server, and there is no account or usage limit.

How this random even number generator works

Rather than drawing a number and rejecting it when it turns out to be odd, the generator works out the set of even values in your range first and then draws from that set directly. Even numbers form a simple arithmetic progression — start at the first even value at or above your minimum, then step by two — so the set can be described without ever being written out, however wide the range.

Drawing an index into that set rather than a raw number is what keeps the result unbiased. It also means the work does not grow with the size of the range: picking an even number between 1 and a billion costs exactly what picking one between 1 and 10 costs.

Negative ranges are handled properly. Because -8 divided by two leaves no remainder, it is even, and the generator includes it — a detail that a naive modulo check gets wrong in several languages.

How to use it

  1. Step 1: Set your range

    Enter the lowest and highest numbers to draw between. Both ends are included.

  2. Step 2: Choose how many

    Pick a quantity, decide whether values may repeat, and choose a sort order.

  3. Step 3: Generate

    Press Generate, then copy a single value or export the whole batch.

Example usage

Splitting a group into pairs
An even total guarantees nobody is left without a partner — draw the group size from even numbers and the pairing always works out.
Alternating schedules
Even-numbered weeks or slots for one team, odd for the other, with the starting point drawn at random so it is not chosen by anyone.
Teaching parity
Generating a batch and asking which are even is a faster demonstration than writing numbers out, and the full list on this page gives the answer key.

Frequently asked questions

How many even numbers are there between 1 and 100?

Fifty: 2, 4, 6 and so on up to 100. They are all listed on this page. Between 1 and 99 there are still fifty, because 100 is the only even number in that last pair.

Is zero an even number?

Yes. Zero divides by two with no remainder, which is the definition. It is included whenever your range covers it — a point that surprises people often enough to be worth stating.

Can even numbers be negative?

Yes. -2, -8 and -100 are all even. Set a negative minimum and they will be drawn alongside positive values.

Why not just generate any number and double it?

That works for a range starting at zero, but it quietly breaks elsewhere. Doubling numbers from 1 to 50 gives you 2 to 100 — which is fine — but doubling to fit a range of 37 to 63 requires arithmetic that is easy to get subtly wrong at the boundaries. Drawing from the actual set avoids the question.

Are the results genuinely random?

They come from your device's cryptographic random source, and the index into the set of even values is drawn without modulo bias. Every even number in your range is exactly as likely as any other.

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