| Dormagen to Isselburg | 52.85 mi (85.05 km) |
| Dormagen to Issum | 34.75 mi (55.93 km) |
| Dormagen to Itzehoe | 225.76 mi (363.33 km) |
| Dormagen to Jena | 207.63 mi (334.15 km) |
| Dormagen to Jever | 176.98 mi (284.82 km) |
| Dormagen to Jork | 207.17 mi (333.41 km) |
| Dormagen to Juchen | 13.67 mi (22.00 km) |
| Dormagen to Julich | 23.41 mi (37.67 km) |
| Dormagen to Juterbog | 275.71 mi (443.71 km) |
| Dormagen to Kaarst | 11.84 mi (19.05 km) |
| Dormagen to Kaiserslautern | 121.85 mi (196.10 km) |
| Dormagen to Kalkar | 49.59 mi (79.80 km) |
| Dormagen to Kall | 39.77 mi (64.00 km) |
| Dormagen to Kaltenkirchen | 230.90 mi (371.60 km) |
| Dormagen to Kamen | 49.95 mi (80.39 km) |
