US Paper Sizes Explained
US paper sizes are based on traditional imperial measurements and differ entirely from the ISO 216 standard. They are used primarily in the United States, Canada, and Mexico. The most common size is Letter (8.5 × 11 in).
📊 US Paper Size Quick Facts:
• Most Common: Letter (8.5 × 11 in)
• Standard for Legal: Legal (8.5 × 14 in)
• Newspaper Size: Tabloid (11 × 17 in)
• Ratio: No consistent √2 ratio (unlike ISO 216)
• Most Common: Letter (8.5 × 11 in)
• Standard for Legal: Legal (8.5 × 14 in)
• Newspaper Size: Tabloid (11 × 17 in)
• Ratio: No consistent √2 ratio (unlike ISO 216)
📏 Complete US Paper Size Dimensions
| Size | Inches | Millimetres | Centimetres |
|---|---|---|---|
| Letter | 8.5 × 11 in | 216 × 279 mm | 21.6 × 27.9 cm |
| Legal | 8.5 × 14 in | 216 × 356 mm | 21.6 × 35.6 cm |
| Tabloid | 11 × 17 in | 279 × 432 mm | 27.9 × 43.2 cm |
| Ledger | 17 × 11 in | 432 × 279 mm | 43.2 × 27.9 cm |
| Executive | 7.25 × 10.5 in | 184 × 267 mm | 18.4 × 26.7 cm |
| Junior Legal | 5 × 8 in | 127 × 203 mm | 12.7 × 20.3 cm |
| Half Letter | 5.5 × 8.5 in | 140 × 216 mm | 14.0 × 21.6 cm |
| Government Letter | 8 × 10.5 in | 203 × 267 mm | 20.3 × 26.7 cm |
| Government Legal | 8.5 × 13 in | 216 × 330 mm | 21.6 × 33.0 cm |
🔁 Convert Between US Sizes
Letter → Tabloid
Enlarge
Tabloid → Letter
Reduce
Letter → Legal
Longer
Legal → Letter
Shorter
Legal → Tabloid
Enlarge
Tabloid → Legal
Reduce
Ledger → Tabloid
Rotate
Executive → Letter
Enlarge
US → A-Series
Convert
🖥️ US Sizes in Pixels (300 DPI)
📏 US Letter vs A4
The most common question is the difference between US Letter and A4:
- US Letter: 8.5 × 11 in (216 × 279 mm) — slightly wider, slightly shorter
- A4: 210 × 297 mm (8.27 × 11.69 in) — slightly narrower, slightly taller
- Area: A4 has a slightly larger total area
- Usage: Letter is standard in the US/Canada; A4 is standard globally
Read the full A4 vs Letter comparison →
Common Uses of US Paper Sizes
- Letter: Standard documents, letters, forms, business reports
- Legal: Legal contracts, court documents, real estate paperwork
- Tabloid / Ledger: Newspapers, menus, small posters, diagrams
- Executive: Personal stationery, executive reports, small booklets
- Government Letter / Legal: Government correspondence and forms
🔗 Related Series
- 📄 A-Series Sizes (global standard)
- 📐 B-Series Sizes
- ✉️ C-Series Sizes
- 📄 All Paper Sizes