| Boulogne-sur-Mer to Gueret | 314.99 mi (506.93 km) |
| Boulogne-sur-Mer to Guichen | 244.67 mi (393.77 km) |
| Boulogne-sur-Mer to Guidel | 306.64 mi (493.48 km) |
| Boulogne-sur-Mer to Guilherand | 427.69 mi (688.31 km) |
| Boulogne-sur-Mer to Guipavas | 312.46 mi (502.86 km) |
| Boulogne-sur-Mer to Gujan-Mestras | 438.80 mi (706.18 km) |
| Boulogne-sur-Mer to Guyancourt | 136.62 mi (219.87 km) |
| Boulogne-sur-Mer to Hagondange | 226.35 mi (364.28 km) |
| Boulogne-sur-Mer to Haguenau | 305.29 mi (491.31 km) |
| Boulogne-sur-Mer to Halluin | 66.16 mi (106.47 km) |
| Boulogne-sur-Mer to Harnes | 59.88 mi (96.37 km) |
| Boulogne-sur-Mer to Haubourdin | 60.63 mi (97.58 km) |
| Boulogne-sur-Mer to Hautmont | 106.77 mi (171.83 km) |
| Boulogne-sur-Mer to Hayange | 219.67 mi (353.53 km) |
| Boulogne-sur-Mer to Hazebrouck | 40.44 mi (65.08 km) |
