Bank card vs Hen's egg: size comparison
Bank card: 8.56 cm. Hen's egg: 5.7 cm. Both silhouettes are drawn at the same scale.
Size ratio: ×1.5
Bank card
8.56 cm
What is measured Width of an ISO/IEC 7810 ID-1 card
Every bank card in the world is 85.60 × 53.98 mm.
Source : Wikipedia — IEC 7810
Hen's egg
5.7 cm
What is measured Height of a medium hen's egg
The shell makes up about 10% of the egg's weight.
Source : Wikipedia — Egg as food