Is That A Big Number?

If Diameter of Venus (12,010 km) was a standard unit ...

Diameter of Mercury (4,880 km)...more would be 2/5 of Diameter of Venus

Length of I-90 highway from Boston to Seattle (4,860 km)...more would be 2/5 of Diameter of Venus

Length of the Rio Grande (USA, Mexico) (3,057 km)...more would be 1/4 of Diameter of Venus

Circumference of the dwarf planet Ceres (2,992 km)...more would be 1/4 of Diameter of Venus

Diameter of Pluto (2,377 km)...more would be 1/5 of Diameter of Venus

Length of mainland Italy (1,185 km)...more would be 1/10 of Diameter of Venus

Length of the St Lawrence Seaway Canal system (600 km)...more would be 1/20 of Diameter of Venus

Length of the British Grand Prix Formula 1 motor race (306.3 km)...more would be 1/40 of Diameter of Venus

Diameter of the (fictional) Death Star in the first Star Wars movie (120 km)...more would be 1/100 of Diameter of Venus

Highest ascent by a propellor-driven aircraft (2001) (29.52 km)...more would be 1/400 of Diameter of Venus

Height of Mount Kilimanjaro (5.89 km)...more would be 1/2000 of Diameter of Venus

Highest altitude reached by a single kite (4.88 km)...more would be 1/2500 of Diameter of Venus

Length of the Epsom Derby horse race (2.4 km)...more would be 1/5000 of Diameter of Venus