| Royston to Idar-Oberstein | 357.89 mi (575.97 km) |
| Royston to Idstein | 380.85 mi (612.93 km) |
| Royston to Illertissen | 519.22 mi (835.60 km) |
| Royston to Illingen | 360.05 mi (579.44 km) |
| Royston to Ilmenau | 480.73 mi (773.66 km) |
| Royston to Ilsede | 432.42 mi (695.92 km) |
| Royston to Ilsenburg | 455.50 mi (733.06 km) |
| Royston to Ilsfeld | 456.19 mi (734.16 km) |
| Royston to Ilvesheim | 415.01 mi (667.90 km) |
| Royston to Immenstadt im Allgau | 550.74 mi (886.34 km) |
| Royston to Ingelheim | 378.92 mi (609.81 km) |
| Royston to Ingolstadt | 551.94 mi (888.26 km) |
| Royston to Iserlohn | 332.08 mi (534.43 km) |
| Royston to Isernhagen-Sud | 418.43 mi (673.40 km) |
| Royston to Ismaning | 580.30 mi (933.91 km) |
