Adult hand vs Watermelon: size comparison
Adult hand: 18.9 cm. Watermelon: 30 cm. Both silhouettes are drawn at the same scale.
Size ratio: ×1.6
Adult hand
18.9 cm
What is measured Length of an adult hand, wrist to middle fingertip
A hand has 27 bones: both hands hold a quarter of all the bones in the body.
Source : Wikipedia — Hand
Watermelon
30 cm
What is measured Length of a common watermelon
It is more than 90% water.
Source : Wikipedia — Watermelon