| Constanta to Isny im Allgau | 923.64 mi (1,486.46 km) |
| Constanta to Isselburg | 1,147.26 mi (1,846.34 km) |
| Constanta to Issum | 1,142.66 mi (1,838.93 km) |
| Constanta to Itzehoe | 1,091.39 mi (1,756.41 km) |
| Constanta to Jena | 918.89 mi (1,478.81 km) |
| Constanta to Jever | 1,137.96 mi (1,831.37 km) |
| Constanta to Jork | 1,072.08 mi (1,725.34 km) |
| Constanta to Juchen | 1,130.56 mi (1,819.46 km) |
| Constanta to Julich | 1,133.14 mi (1,823.61 km) |
| Constanta to Juterbog | 896.00 mi (1,441.97 km) |
| Constanta to Kaarst | 1,128.08 mi (1,815.46 km) |
| Constanta to Kaiserslautern | 1,047.79 mi (1,686.25 km) |
| Constanta to Kalkar | 1,152.27 mi (1,854.39 km) |
| Constanta to Kall | 1,118.33 mi (1,799.78 km) |
| Constanta to Kaltenkirchen | 1,072.83 mi (1,726.55 km) |
