| Frosinone to Illzach | 516.71 mi (831.56 km) |
| Frosinone to Ingre | 711.67 mi (1,145.32 km) |
| Frosinone to Irigny | 509.12 mi (819.34 km) |
| Frosinone to Isbergues | 809.39 mi (1,302.59 km) |
| Frosinone to Issoire | 572.60 mi (921.51 km) |
| Frosinone to Issoudun | 670.04 mi (1,078.32 km) |
| Frosinone to Issy-les-Moulineaux | 731.80 mi (1,177.71 km) |
| Frosinone to Istres | 444.58 mi (715.49 km) |
| Frosinone to Ivry-sur-Seine | 727.39 mi (1,170.61 km) |
| Frosinone to Jarville-la-Malgrange | 597.34 mi (961.33 km) |
| Frosinone to Jeumont | 744.05 mi (1,197.43 km) |
| Frosinone to Joigny | 655.13 mi (1,054.33 km) |
| Frosinone to Joinville-le-Pont | 724.51 mi (1,165.99 km) |
| Frosinone to Joue-les-Tours | 738.30 mi (1,188.17 km) |
| Frosinone to Jouy-le-Moutier | 748.07 mi (1,203.90 km) |
