| Iowa City to Bingen am Rhein | 4,458.04 mi (7,174.53 km) |
| Iowa City to Birkenau | 4,503.62 mi (7,247.88 km) |
| Iowa City to Birkenfeld | 4,529.13 mi (7,288.94 km) |
| Iowa City to Bischofsheim | 4,473.63 mi (7,199.61 km) |
| Iowa City to Bischofswerda | 4,630.25 mi (7,451.66 km) |
| Iowa City to Bisingen | 4,562.32 mi (7,342.35 km) |
| Iowa City to Bissendorf | 4,377.93 mi (7,045.60 km) |
| Iowa City to Bitburg | 4,408.21 mi (7,094.32 km) |
| Iowa City to Bitterfeld | 4,546.11 mi (7,316.25 km) |
| Iowa City to Blankenburg | 4,492.30 mi (7,229.67 km) |
| Iowa City to Blankenfelde | 4,551.82 mi (7,325.44 km) |
| Iowa City to Blaubeuren | 4,590.11 mi (7,387.07 km) |
| Iowa City to Bleicherode | 4,494.15 mi (7,232.63 km) |
| Iowa City to Blieskastel | 4,463.49 mi (7,183.29 km) |
| Iowa City to Blomberg | 4,421.71 mi (7,116.06 km) |
