| Romanshorn to Illzach | 94.65 mi (152.32 km) |
| Romanshorn to Ingre | 350.70 mi (564.39 km) |
| Romanshorn to Irigny | 251.65 mi (404.98 km) |
| Romanshorn to Isbergues | 376.78 mi (606.37 km) |
| Romanshorn to Issoire | 321.86 mi (517.99 km) |
| Romanshorn to Issoudun | 347.77 mi (559.68 km) |
| Romanshorn to Issy-les-Moulineaux | 337.67 mi (543.42 km) |
| Romanshorn to Istres | 350.45 mi (564.00 km) |
| Romanshorn to Ivry-sur-Seine | 332.77 mi (535.55 km) |
| Romanshorn to Jarville-la-Malgrange | 164.16 mi (264.19 km) |
| Romanshorn to Jeumont | 304.02 mi (489.28 km) |
| Romanshorn to Joigny | 278.16 mi (447.65 km) |
| Romanshorn to Joinville-le-Pont | 328.62 mi (528.87 km) |
| Romanshorn to Joue-les-Tours | 406.20 mi (653.72 km) |
| Romanshorn to Jouy-le-Moutier | 350.82 mi (564.58 km) |
