A0 to A3 Conversion
A3 is one-eighth of A0. Folding A0 → A1 → A2 → A3 requires three halvings, resulting in an 8:1 area reduction.
A0 (Original)
A0
841 × 1189 mm
33.1 × 46.8 in
33.1 × 46.8 in
A3 (Result)
A3
297 × 420 mm
11.7 × 16.5 in
11.7 × 16.5 in
📊 A0 vs A3 Quick Facts:
• Ratio: 8 A3 sheets = 1 A0 sheet
• Fold: A0 → A1 → A2 → A3 (fold 3 times)
• Scale Factor: 35.4% of each dimension
• Uses: A3 for office documents, drawings, spreadsheets
• Ratio: 8 A3 sheets = 1 A0 sheet
• Fold: A0 → A1 → A2 → A3 (fold 3 times)
• Scale Factor: 35.4% of each dimension
• Uses: A3 for office documents, drawings, spreadsheets
📏 Complete Dimensions
| Unit | A0 | A3 |
|---|---|---|
| Millimetres | 841 × 1189 mm | 297 × 420 mm |
| Centimetres | 84.1 × 118.9 cm | 29.7 × 42.0 cm |
| Inches | 33.1 × 46.8 in | 11.7 × 16.5 in |
| Pixels @ 72 DPI | 2384 × 3370 px | 842 × 1191 px |
| Pixels @ 300 DPI | 9933 × 14043 px | 3508 × 4961 px |
| Pixels @ 600 DPI | 19866 × 28087 px | 7016 × 9921 px |
🎨 Common Uses
- A0: Large posters, technical drawings, professional displays
- A3: Office documents, posters, diagrams, spreadsheets
🔁 Related Conversions
- A0 to A1 – Half size
- A0 to A2 – Quarter size
- A0 to A4 – 16× smaller
- A3 to A2 – Double size
- A3 to A4 – Half size
❓ Frequently Asked Questions
How many A3 fit in A0? Exactly eight A3 sheets fit into one A0 sheet.
How do I convert A0 to A3? Fold three times, or scale each dimension to 35.4% when printing.