| Rockford to Illzach | 4,403.75 mi (7,087.14 km) |
| Rockford to Ingre | 4,184.59 mi (6,734.45 km) |
| Rockford to Irigny | 4,388.19 mi (7,062.12 km) |
| Rockford to Isbergues | 4,111.83 mi (6,617.35 km) |
| Rockford to Issoire | 4,330.15 mi (6,968.70 km) |
| Rockford to Issoudun | 4,226.99 mi (6,802.68 km) |
| Rockford to Issy-les-Moulineaux | 4,169.18 mi (6,709.64 km) |
| Rockford to Istres | 4,480.21 mi (7,210.21 km) |
| Rockford to Ivry-sur-Seine | 4,173.82 mi (6,717.11 km) |
| Rockford to Jarville-la-Malgrange | 4,325.74 mi (6,961.61 km) |
| Rockford to Jeumont | 4,185.42 mi (6,735.78 km) |
| Rockford to Joigny | 4,243.90 mi (6,829.89 km) |
| Rockford to Joinville-le-Pont | 4,177.12 mi (6,722.42 km) |
| Rockford to Joue-les-Tours | 4,159.18 mi (6,693.55 km) |
| Rockford to Jouy-le-Moutier | 4,153.47 mi (6,684.36 km) |
