| Northeim to Idar-Oberstein | 181.19 mi (291.59 km) |
| Northeim to Idstein | 127.23 mi (204.76 km) |
| Northeim to Illertissen | 241.16 mi (388.11 km) |
| Northeim to Illingen | 206.57 mi (332.45 km) |
| Northeim to Ilmenau | 81.08 mi (130.49 km) |
| Northeim to Ilsede | 39.46 mi (63.51 km) |
| Northeim to Ilsenburg | 31.18 mi (50.18 km) |
| Northeim to Ilsfeld | 186.52 mi (300.17 km) |
| Northeim to Ilvesheim | 166.68 mi (268.24 km) |
| Northeim to Immenstadt im Allgau | 286.21 mi (460.61 km) |
| Northeim to Ingelheim | 146.69 mi (236.07 km) |
| Northeim to Ingolstadt | 212.88 mi (342.61 km) |
| Northeim to Iserlohn | 102.76 mi (165.38 km) |
| Northeim to Isernhagen-Sud | 50.64 mi (81.49 km) |
| Northeim to Ismaning | 251.66 mi (405.01 km) |
