| Trondheim to Idar-Oberstein | 954.79 mi (1,536.59 km) |
| Trondheim to Idstein | 916.04 mi (1,474.23 km) |
| Trondheim to Illertissen | 1,051.18 mi (1,691.71 km) |
| Trondheim to Illingen | 979.03 mi (1,575.59 km) |
| Trondheim to Ilmenau | 880.86 mi (1,417.61 km) |
| Trondheim to Ilsede | 771.33 mi (1,241.33 km) |
| Trondheim to Ilsenburg | 799.00 mi (1,285.86 km) |
| Trondheim to Ilsfeld | 994.47 mi (1,600.45 km) |
| Trondheim to Ilvesheim | 966.77 mi (1,555.86 km) |
| Trondheim to Immenstadt im Allgau | 1,096.05 mi (1,763.92 km) |
| Trondheim to Ingelheim | 933.71 mi (1,502.66 km) |
| Trondheim to Ingolstadt | 1,014.11 mi (1,632.05 km) |
| Trondheim to Iserlohn | 838.30 mi (1,349.11 km) |
| Trondheim to Isernhagen-Sud | 759.96 mi (1,223.04 km) |
| Trondheim to Ismaning | 1,051.57 mi (1,692.33 km) |
