Paper Size
Convert A4 to A5
From
A4 (A4)
To
A5 (A5)
1 A4 (A4)= A5 (A5)
Common Conversions:
A4 (A4) → Letter (Letter)
Letter (Letter) → A4 (A4)
A4 (A4) → Legal (Legal)
Legal (Legal) → A4 (A4)
A3 (A3) → Ledger (Ledger)
What is Unit Conversion?
Unit conversion is the process of converting a quantity expressed in one set of units to another set of units. This is essential for scientific research, engineering, commerce, and daily life, ensuring consistency and accuracy across different measurement systems.
Purpose of Paper Size Conversions
Paper size conversions are useful in printing, publishing, and office work. They help us select and compare standard paper formats worldwide.
Projects That Require Paper Size Conversions
Paper size conversions are used in international printing, document formatting, and packaging design.
Historical Background
Paper size measurement became standardized with the introduction of ISO and ANSI formats.
| Unit | In Millimeters (mm) | Real-world Example |
|---|---|---|
| A4 | 210 × 297 mm | Standard printer paper |
| A3 | 297 × 420 mm | Tabloid or ledger paper |
| Letter | 216 × 279 mm | US letter paper |
| Legal | 216 × 356 mm | US legal paper |
| Executive | 184 × 267 mm | Executive notepad |
| Ledger | 432 × 279 mm | Ledger book |
| Tabloid | 279 × 432 mm | Tabloid newspaper |
| Folio | 210 × 330 mm | Folio paper |
| quarto | 215 × 275 mm | Quarto book |
| Postcard | 100 × 148 mm | Standard postcard |
| A5 | 148 × 210 mm | A5 notebook |
| B5 | 176 × 250 mm | B5 notebook |
| A6 | 105 × 148 mm | A6 memo pad |
| B6 | 125 × 176 mm | B6 memo pad |
| A7 | 74 × 105 mm | A7 card |
| B7 | 88 × 125 mm | B7 card |
| A8 | 52 × 74 mm | A8 ticket |
| B8 | 62 × 88 mm | B8 ticket |
| A9 | 37 × 52 mm | A9 label |
| B9 | 44 × 62 mm | B9 label |
| A10 | 26 × 37 mm | A10 stamp |
| B10 | 31 × 44 mm | B10 stamp |