Business card sizes have typically remained the same size as banking cards. This is so they fit into your purse or wallet more easily. Nowadays, the rectangular sized business card is more and more being replaced by square and other designs. The rectangle still remains very popular though.
85mmx55mm remains the most common sized business card today.
|Format||Width x Height (mm)||Width x Height (inches)|
|ISO 216||74 x 52 mm||2.9 x 2 inches|
|US/Canada||88.9 x 50.8 mm||3.5 x 2 inches|
|European||85 x 55 mm||3.3 x 2.2 inches|
|Scandinavia||90 x 55 mm||3.5 x 2.2 inches|
|China||90 x 54 mm||3.5 x 2.1 inches|
|Japan||91 x 55 mm||3.6 x 2.2 inches|
|Iran||85 x 48 mm||3.3 x 1.9 inches|
|ISO 7810 ID-1||85.6 x 54 mm||3.4 x 2.1 inches|