| Boppard to Grevena | 969.55 mi (1,560.34 km) |
| Boppard to Ialysos | 1,398.04 mi (2,249.93 km) |
| Boppard to Ilion | 1,156.38 mi (1,861.02 km) |
| Boppard to Ilioupoli | 1,163.51 mi (1,872.48 km) |
| Boppard to Ioannina | 973.65 mi (1,566.93 km) |
| Boppard to Irakleio | 1,353.19 mi (2,177.75 km) |
| Boppard to Irakleio | 1,157.72 mi (1,863.17 km) |
| Boppard to Kaisariani | 1,161.88 mi (1,869.86 km) |
| Boppard to Kalamaria | 996.20 mi (1,603.23 km) |
| Boppard to Kalamata | 1,161.11 mi (1,868.63 km) |
| Boppard to Kallithea | 1,160.92 mi (1,868.32 km) |
| Boppard to Kalymnos | 1,326.06 mi (2,134.08 km) |
| Boppard to Kalyvia Thorikou | 1,174.54 mi (1,890.25 km) |
| Boppard to Kamatero | 1,155.35 mi (1,859.36 km) |
| Boppard to Karditsa | 1,024.54 mi (1,648.84 km) |
