| Iowa City to Borsbeek | 4,286.15 mi (6,897.89 km) |
| Iowa City to Boussu | 4,289.52 mi (6,903.32 km) |
| Iowa City to Braine-l'Alleud | 4,301.51 mi (6,922.61 km) |
| Iowa City to Braine-le-Chateau | 4,297.55 mi (6,916.23 km) |
| Iowa City to Braine-le-Comte | 4,295.75 mi (6,913.35 km) |
| Iowa City to Brasschaat | 4,282.90 mi (6,892.66 km) |
| Iowa City to Brecht | 4,286.00 mi (6,897.65 km) |
| Iowa City to Bredene | 4,229.74 mi (6,807.10 km) |
| Iowa City to Bree | 4,328.60 mi (6,966.21 km) |
| Iowa City to Bruges | 4,239.77 mi (6,823.25 km) |
| Iowa City to Brussels | 4,294.58 mi (6,911.46 km) |
| Iowa City to Buggenhout | 4,283.27 mi (6,893.25 km) |
| Iowa City to Chapelle-lez-Herlaimont | 4,306.28 mi (6,930.29 km) |
| Iowa City to Charleroi | 4,314.33 mi (6,943.24 km) |
| Iowa City to Chatelet | 4,317.41 mi (6,948.20 km) |
