Random Letter Generator
WorksheetsFreeNo sign-up
Press the button to pick a random letter. Each of the 26 letters has the same 1 in 26 chance (about 3.85%). Choose how many letters, the case, vowels or consonants only, and whether letters may repeat.
With “My own letters”, only these are used. Otherwise, letters typed here are left out.
How to use the random letter generator
- Choose how many letters and which letters: all 26, vowels, consonants, or your own set.
- Pick upper or lower case, and tick No repeats to draw letters like cards from a deck.
- Press Pick letters. The history keeps your last 12 results.
Letters are chosen with your browser’s cryptographic random number generator, so every allowed letter is equally likely.
Probability with random letters
| Question | Probability |
|---|---|
| One letter is a vowel (A E I O U) | 5 ÷ 26 ≈ 19.2% |
| One letter is a consonant | 21 ÷ 26 ≈ 80.8% |
| Two letters (with repeats) are the same | 1 ÷ 26 ≈ 3.8% |
| Three letters spell “CAT” in order | 1 ÷ 26³ = 1 ÷ 17,576 |
With no repeats, the count of possible ordered results drops: 26 × 25 × 24 = 15,600 for three letters.
Ideas for using random letters
- Games such as Scattergories-style categories: name an animal, a country and a food that start with the letter.
- Alphabet and phonics practice: say a word that starts with the letter.
- Choosing a variable name for an algebra problem.
- Drawing names or teams by first letter.
Random letter practice questions
Test yourself with 6 multiple-choice questions. Choose an answer and press Submit to see if you are right and why. Your score appears at the end.
There are 21 consonants and M, T and H are three of them, so the chance is 3⁄21, which simplifies to 1⁄7.
Quiz complete
Frequently asked questions
Is every letter equally likely?
Yes. The tool picks uniformly from the letters you allow, using your browser's secure random number generator.
Can I pick letters without repeats?
Yes. Tick No repeats and the letters are drawn like cards from a deck, so each appears at most once.
Can I leave out hard letters like Q, X and Z?
Yes. Type them in the box and they are removed from the pool, unless you have chosen “My own letters”.
Is Y a vowel here?
The vowel setting uses A, E, I, O and U. If you want Y included, choose “My own letters” and type AEIOUY.
Sources
Related tools
Browse all calculators and tools
More worksheets calculators
Related to This Article
More math articles
- Algebra Puzzle – Challenge 43
- 8th Grade MAP Math Worksheets: FREE & Printable
- The Best Grade 5 ELA Practice Tests for Kentucky Students
- Paint Calculator
- Free Grade 4 English Worksheets for Alabama Students
- How to Help Your 5th Grade Student Prepare for the Indiana ILEARN Math Test
- The Best Grade 3 Math Book for Texas Students
- New York Algebra I Worksheets and Regents Review
- SHSAT 2026 Changes: The New Adaptive Test, Explained
- Pre-Calculus to Calculus Bridge Guide: Summer Prep for Calc 1 in 2027
What people say about "Random Letter Generator: Pick Random Letters A to Z"?
No one replied yet.