How to Calculate Bingo Card
What is Bingo Card?
A bingo card generator creates random bingo cards with a free centre space following standard BINGO rules: B(1–15), I(16–30), N(31–45), G(46–60), O(61–75).
Formula
B: 5 from 1–15, I: 5 from 16–30, N: 4 from 31–45 + FREE, G: 5 from 46–60, O: 5 from 61–75. Standard win = row, column, or diagonal
- B, I, N, G, O
- Column headers — Spelling BINGO
- Range
- Number range per column
- FREE
- Free centre space — Always marked
Step-by-Step Guide
- 1Each column draws from its designated range without repetition
- 2B: 5 numbers from 1–15; I: from 16–30; N: from 31–45 (with free); G: from 46–60; O: from 61–75
- 3Standard card: 5×5 grid with 24 numbers + FREE centre
- 4Win: complete a row, column, diagonal, or full house
Worked Examples
Input
Generate one standard bingo card
Result
Random 5×5 grid, e.g. B:3,12,7,14,9 | I:25,18,30,22,16 | N:42,38,FREE,33,45 ...
Frequently Asked Questions
What's the probability of winning a single-card game?
Depends on number of players. With 1 card vs many players, chances are low. Casino odds typically 40-50%.
Why does N column have a free space?
The free space is the game's handicap to speed up play and increase winning chances.
Can I win with a diagonal?
In standard American bingo, yes. Diagonal wins are allowed. Check the variant being played (some allow only rows/columns).