The Geometry of A4 Paper: √2 Silver Ratio
The mathematical beauty behind paper sizes: Self-Similarity and Recursive Splitting.
A0
Active Level
Mathematical Insight
The A-series is designed so that cutting it in half yields two pieces with the same aspect ratio as the original. This is the only ratio with this property.
Aspect Ratio
1.414... : 1
Scale Factor
Area ½ per step
Explorer Controls
Selected Size
Original
A0
1189mm × 841mm
Surface Area
0.9999 m²
Calculated Ratio
1.414
Fun fact: A0 paper is exactly 1 square meter!