| Gourock to Bucak | 2,071.91 mi (3,334.42 km) |
| Gourock to Buharkent | 1,979.88 mi (3,186.31 km) |
| Gourock to Bulancak | 2,181.65 mi (3,511.03 km) |
| Gourock to Bulanik | 2,423.58 mi (3,900.37 km) |
| Gourock to Buldan | 1,978.60 mi (3,184.24 km) |
| Gourock to Bunyan | 2,193.17 mi (3,529.57 km) |
| Gourock to Burdur | 2,047.14 mi (3,294.56 km) |
| Gourock to Burhaniye | 1,836.31 mi (2,955.26 km) |
| Gourock to Bursa | 1,876.13 mi (3,019.34 km) |
| Gourock to Buyukcekmece | 1,817.17 mi (2,924.46 km) |
| Gourock to Buyukorhan | 1,893.30 mi (3,046.97 km) |
| Gourock to Buyukyoncali | 1,775.83 mi (2,857.93 km) |
| Gourock to Caglayancerit | 2,301.72 mi (3,704.26 km) |
| Gourock to Cal | 1,996.64 mi (3,213.29 km) |
| Gourock to Caldiran | 2,484.46 mi (3,998.35 km) |
