Jupiter vs Venus: size comparison
Jupiter: 139,820 km. Venus: 12,104 km. Both silhouettes are drawn at the same scale.
Size ratio: ×12
Jupiter
139,820 km
What is measured Equatorial diameter of Jupiter
Its Great Red Spot is a storm wider than Earth.
Source : Wikipedia — Jupiter
Venus
12,104 km
What is measured Diameter of Venus
It is nearly Earth's twin in size, at 12,104 km across.
Source : Wikipedia — Venus