| Iowa City to Belper | 4,004.30 mi (6,444.29 km) |
| Iowa City to Bentley | 3,999.34 mi (6,436.32 km) |
| Iowa City to Berkhampstead | 4,080.35 mi (6,566.69 km) |
| Iowa City to Berwick-Upon-Tweed | 3,898.79 mi (6,274.49 km) |
| Iowa City to Beverley | 4,015.57 mi (6,462.43 km) |
| Iowa City to Bewdley | 3,994.53 mi (6,428.58 km) |
| Iowa City to Bexleyheath | 4,116.67 mi (6,625.14 km) |
| Iowa City to Bicester | 4,053.64 mi (6,523.70 km) |
| Iowa City to Bickenhill | 4,014.39 mi (6,460.54 km) |
| Iowa City to Bickley | 4,115.28 mi (6,622.91 km) |
| Iowa City to Biddulph | 3,975.87 mi (6,398.54 km) |
| Iowa City to Bideford | 3,966.67 mi (6,383.74 km) |
| Iowa City to Bidston | 3,933.58 mi (6,330.49 km) |
| Iowa City to Biggleswade | 4,080.59 mi (6,567.08 km) |
| Iowa City to Billericay | 4,121.25 mi (6,632.52 km) |
