| Mullingar to Illzach | 753.62 mi (1,212.83 km) |
| Mullingar to Ingre | 556.34 mi (895.34 km) |
| Mullingar to Irigny | 766.59 mi (1,233.70 km) |
| Mullingar to Isbergues | 461.16 mi (742.16 km) |
| Mullingar to Issoire | 725.94 mi (1,168.29 km) |
| Mullingar to Issoudun | 612.52 mi (985.75 km) |
| Mullingar to Issy-les-Moulineaux | 527.09 mi (848.26 km) |
| Mullingar to Istres | 889.81 mi (1,432.01 km) |
| Mullingar to Ivry-sur-Seine | 531.39 mi (855.19 km) |
| Mullingar to Jarville-la-Malgrange | 675.05 mi (1,086.38 km) |
| Mullingar to Jeumont | 535.38 mi (861.62 km) |
| Mullingar to Joigny | 604.49 mi (972.83 km) |
| Mullingar to Joinville-le-Pont | 534.12 mi (859.59 km) |
| Mullingar to Joue-les-Tours | 552.25 mi (888.77 km) |
| Mullingar to Jouy-le-Moutier | 510.67 mi (821.84 km) |
