| Format | Width × Height (in) | Width × Height (mm) |
|---|---|---|
| ISO 216, A8 sized | 74 × 52 | 2.913 × 2.047 |
| ISO 216, C8 sized | 81 × 57 | 3.189 × 2.244 |
| Ireland, Italy, United Kingdom, France, Germany, Austria, Netherlands, Spain, Switzerland, Belgium, Slovenia, Portugal, Turkey, Nepal |
85 × 55 | 3.346 × 2.165 |
| ISO/IEC 7810 ID-1, credit card sized, Australia | 85.60 × 53.98 | 3.370 × 2.125 |
| Australia, Denmark, New Zealand, Norway, Taiwan, Sweden, Vietnam, India, Colombia |
90 × 55 | 3.54 × 2.165 |
| Japan | 91 × 55 | 3.582 × 2.165 |
| Hong Kong, China, Singapore, Malaysia | 90 × 54 | 3.543 × 2.125 |
| Canada, United States | 88.9 × 50.8 | 3.5 × 2 |
| Iran | 85 × 48 | 3.346 × 1.889 |
| Sri Lanka, Argentina, India, Brazil, Bosnia and Herzegovina, Costa Rica, Czech Republic, Croatia, Estonia, Finland, Hungary, Israel, Kazakhstan, Lithuania, Poland, Romania, Russia, Serbia, Montenegro, Slovakia, Ukraine, Uzbekistan, Bulgaria, Latvia, Mexico, South Korea and South Africa |
90 × 50 | 3.543 × 1.968 |
| ISO 216, B8 sized | 88 × 62 | 3.465 × 2.441 |
Aspect ratios range from 1.42 to 1.8. There is no standard for the business card dimensions. Sharing dimensions with other cards makes storage easier, for example banking cards (85.60 × 53.98 mm) and business cards in Western Europe (85 × 55 mm) have almost the same size.
| A series | B series | C series | US sizes | US Envelope |
| International Envelope | Photography Paper | Canadian | Japanese | Books |
| Newspaper | Chinese | Billboard | Imperial | Colombian |
| French | Raw | Transitional |
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