| Boulogne-sur-Mer to Impruneta | 663.29 mi (1,067.46 km) |
| Boulogne-sur-Mer to Induno Olona | 472.50 mi (760.41 km) |
| Boulogne-sur-Mer to Inverigo | 490.89 mi (790.01 km) |
| Boulogne-sur-Mer to Inveruno | 490.40 mi (789.22 km) |
| Boulogne-sur-Mer to Inzago | 509.78 mi (820.41 km) |
| Boulogne-sur-Mer to Iseo | 522.56 mi (840.98 km) |
| Boulogne-sur-Mer to Isernia | 870.81 mi (1,401.44 km) |
| Boulogne-sur-Mer to Isola Capo Rizzuto | 1,107.46 mi (1,782.29 km) |
| Boulogne-sur-Mer to Isola del Liri | 845.11 mi (1,360.07 km) |
| Boulogne-sur-Mer to Isola della Scala | 574.44 mi (924.48 km) |
| Boulogne-sur-Mer to Isola Vicentina | 572.91 mi (922.02 km) |
| Boulogne-sur-Mer to Ispica | 1,165.58 mi (1,875.82 km) |
| Boulogne-sur-Mer to Istrana | 594.53 mi (956.80 km) |
| Boulogne-sur-Mer to Itri | 865.53 mi (1,392.93 km) |
| Boulogne-sur-Mer to Ittiri | 775.20 mi (1,247.56 km) |
