| Gretna to Bucak | 6,406.37 mi (10,310.05 km) |
| Gretna to Buharkent | 6,307.24 mi (10,150.51 km) |
| Gretna to Bulancak | 6,531.57 mi (10,511.55 km) |
| Gretna to Bulanik | 6,768.33 mi (10,892.57 km) |
| Gretna to Buldan | 6,307.15 mi (10,150.37 km) |
| Gretna to Bunyan | 6,548.02 mi (10,538.02 km) |
| Gretna to Burdur | 6,381.66 mi (10,270.28 km) |
| Gretna to Burhaniye | 6,164.93 mi (9,921.49 km) |
| Gretna to Bursa | 6,219.74 mi (10,009.71 km) |
| Gretna to Buyukcekmece | 6,163.30 mi (9,918.87 km) |
| Gretna to Buyukorhan | 6,233.92 mi (10,032.53 km) |
| Gretna to Buyukyoncali | 6,121.52 mi (9,851.63 km) |
| Gretna to Caglayancerit | 6,656.62 mi (10,712.79 km) |
| Gretna to Cal | 6,328.81 mi (10,185.24 km) |
| Gretna to Caldiran | 6,822.28 mi (10,979.39 km) |
