| Idstein to Borsbeek | 179.11 mi (288.25 km) |
| Idstein to Boussu | 198.04 mi (318.72 km) |
| Idstein to Braine-l'Alleud | 174.58 mi (280.97 km) |
| Idstein to Braine-le-Chateau | 179.16 mi (288.32 km) |
| Idstein to Braine-le-Comte | 184.18 mi (296.41 km) |
| Idstein to Brasschaat | 181.24 mi (291.68 km) |
| Idstein to Brecht | 177.13 mi (285.06 km) |
| Idstein to Bredene | 242.02 mi (389.49 km) |
| Idstein to Bree | 133.62 mi (215.04 km) |
| Idstein to Bruges | 231.19 mi (372.06 km) |
| Idstein to Brussels | 177.56 mi (285.75 km) |
| Idstein to Buggenhout | 186.55 mi (300.22 km) |
| Idstein to Chapelle-lez-Herlaimont | 176.77 mi (284.49 km) |
| Idstein to Charleroi | 169.91 mi (273.45 km) |
| Idstein to Chatelet | 166.24 mi (267.54 km) |
