| Katwijk to Idar-Oberstein | 213.17 mi (343.06 km) |
| Katwijk to Idstein | 215.78 mi (347.26 km) |
| Katwijk to Illertissen | 371.98 mi (598.64 km) |
| Katwijk to Illingen | 226.49 mi (364.51 km) |
| Katwijk to Ilmenau | 298.87 mi (480.98 km) |
| Katwijk to Ilsede | 244.00 mi (392.68 km) |
| Katwijk to Ilsenburg | 267.28 mi (430.15 km) |
| Katwijk to Ilsfeld | 303.60 mi (488.60 km) |
| Katwijk to Ilvesheim | 261.30 mi (420.52 km) |
| Katwijk to Immenstadt im Allgau | 411.02 mi (661.47 km) |
| Katwijk to Ingelheim | 220.39 mi (354.68 km) |
| Katwijk to Ingolstadt | 388.73 mi (625.59 km) |
| Katwijk to Iserlohn | 149.90 mi (241.24 km) |
| Katwijk to Isernhagen-Sud | 230.30 mi (370.63 km) |
| Katwijk to Ismaning | 421.90 mi (678.98 km) |
