A4 vs Letter – Size Comparison & Conversion
Compare A4 (210 × 297 mm) vs Letter (216 × 279 mm). Dimensions, aspect ratio, and printing tips.
A4
210 × 297 mm
8.27 × 11.69 in
Letter
216 × 279 mm
8.5 × 10.98 in
Area
3.4%
A4 Ratio
Aspect ratio
1:1.414
Letter 1:1.292
A4 vs Letter — Side by Side
| A4 | Letter |
|---|---|
| 210 mm | 216 mm |
| 297 mm | 279 mm |
| 8.27 in | 8.5 in |
| 11.69 in | 10.98 in |
| 62,370 mm² | 60,264 mm² |
| 1 : 1.414 | 1 : 1.292 |
| 2,480 × 3,508 px | 2,551 × 3,295 px |
Summary
A4 — 3.4% Letter (Area)