| Helensburgh to Illzach | 765.31 mi (1,231.65 km) |
| Helensburgh to Ingre | 624.50 mi (1,005.04 km) |
| Helensburgh to Irigny | 825.65 mi (1,328.75 km) |
| Helensburgh to Isbergues | 475.85 mi (765.80 km) |
| Helensburgh to Issoire | 801.98 mi (1,290.67 km) |
| Helensburgh to Issoudun | 689.42 mi (1,109.52 km) |
| Helensburgh to Issy-les-Moulineaux | 577.32 mi (929.11 km) |
| Helensburgh to Istres | 964.48 mi (1,552.18 km) |
| Helensburgh to Ivry-sur-Seine | 580.55 mi (934.30 km) |
| Helensburgh to Jarville-la-Malgrange | 684.66 mi (1,101.85 km) |
| Helensburgh to Jeumont | 537.98 mi (865.79 km) |
| Helensburgh to Joigny | 653.07 mi (1,051.01 km) |
| Helensburgh to Joinville-le-Pont | 581.84 mi (936.39 km) |
| Helensburgh to Joue-les-Tours | 641.30 mi (1,032.07 km) |
| Helensburgh to Jouy-le-Moutier | 560.99 mi (902.83 km) |
