A4 sheet vs House mouse: size comparison
A4 sheet: 29.7 cm. House mouse: 17 cm. Both silhouettes are drawn at the same scale.
Size ratio: ×1.7
A4 sheet
29.7 cm
What is measured Height of an A4 sheet (ISO 216)
Fold an A4 in half and you get A5: the side ratio stays √2.
Source : Wikipedia — ISO 216
House mouse
17 cm
What is measured Length of a house mouse, tail included
Its tail is almost as long as its body.
Source : Wikipedia — House mouse