US Envelope Paper Sizes
Business cards: 85 × 55 mm EU, 89 × 51 mm US, 91 × 55 mm JP.
US Envelope Paper Sizes — dimensions in mm and inches
| Format | mm | inches |
|---|---|---|
| US/Canada | 89 × 51 | 3.5 × 2.01 |
| ISO 7810 ID-1 | 86 × 54 | 3.39 × 2.13 |
| European | 85 × 55 | 3.35 × 2.17 |
| Japan | 91 × 55 | 3.58 × 2.17 |