| Iowa City to Beyne-Heusay | 4,350.75 mi (7,001.86 km) |
| Iowa City to Bierbeek | 4,310.25 mi (6,936.68 km) |
| Iowa City to Bilzen | 4,336.34 mi (6,978.66 km) |
| Iowa City to Binche | 4,304.48 mi (6,927.39 km) |
| Iowa City to Bissegem | 4,253.88 mi (6,845.96 km) |
| Iowa City to Blankenberge | 4,232.50 mi (6,811.55 km) |
| Iowa City to Blegny | 4,351.87 mi (7,003.66 km) |
| Iowa City to Bocholt | 4,326.98 mi (6,963.60 km) |
| Iowa City to Boechout | 4,288.02 mi (6,900.90 km) |
| Iowa City to Bonheiden | 4,294.21 mi (6,910.86 km) |
| Iowa City to Boom | 4,286.26 mi (6,898.06 km) |
| Iowa City to Boortmeerbeek | 4,297.30 mi (6,915.84 km) |
| Iowa City to Borgerhout | 4,284.16 mi (6,894.69 km) |
| Iowa City to Borgloon | 4,332.48 mi (6,972.46 km) |
| Iowa City to Bornem | 4,280.76 mi (6,889.22 km) |
