Paper Size Guide
Explore paper sizes from A0 to A7, as defined by ISO 216:2007, along with DL and custom options. Essential knowledge for printing, design, and stationery needs.
Paper Dimensions Overview
| Format | Width × Height (mm) | Width × Height (in) |
|---|---|---|
| A0 | 841 × 1189 | 33.1 × 46.8 |
| A1 | 594 × 841 | 23.4 × 33.1 |
| A2 | 420 × 594 | 16.5 × 23.4 |
| A3 | 297 × 420 | 11.7 × 16.5 |
| A4 | 210 × 297 | 8.3 × 11.7 |
| A5 | 148 × 210 | 5.8 × 8.3 |
| A6 | 105 × 148 | 4.1 × 5.8 |
| A7 | 74 × 105 | 2.9 × 4.1 |
| DL | 99 × 210 | 3.9 × 8.3 |
Visual Size Comparison

Visual comparison of A-series paper sizes from A0 to A8
Common Uses for Each Size
📏 Key Facts About A-Series Sizes
- •Each size is exactly half the area of the size before it (e.g., A4 is half of A3)
- •All A-series formats have the same aspect ratio (1:√2)
- •This allows for easy scaling without distortion
- •A0 has an area of 1 square metre
- •DL (Dimension Lengthwise) is 1/3 of A4 lengthwise
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