What size is a bingo card?
A standard 75-ball bingo card is a 5×5 grid of 25 squares — 24 numbers plus a free centre — and a 90-ball ticket is a 9-column by 3-row grid of 27 squares holding 15 numbers and 12 blanks.
In the 75-ball grid each column draws from a fixed range: B holds 1–15, I holds 16–30, N holds 31–45, G holds 46–60 and O holds 61–75. The centre square is free, so a completed card only ever needs 24 marks.
Physical size depends entirely on how you print. SnapBingoX lays 75-ball cards out on A4 at 1, 2, 4, 6, 9, 12 or 16 cards per page, so one card can be anything from a full sheet down to roughly a sixteenth of one. 90-ball always prints one six-ticket strip per page, because a nine-column ticket needs the width to stay readable.
For seniors, care homes or anyone with low vision, choose one or two cards per page: the numbers come out large and high-contrast without any separate large-print template.