| Mechernich to Coswig | 265.32 mi (426.99 km) |
| Mechernich to Cottbus | 342.17 mi (550.67 km) |
| Mechernich to Crailsheim | 182.88 mi (294.32 km) |
| Mechernich to Cremlingen | 206.69 mi (332.64 km) |
| Mechernich to Crimmitschau | 251.43 mi (404.63 km) |
| Mechernich to Cuxhaven | 241.33 mi (388.39 km) |
| Mechernich to Dachau | 268.89 mi (432.74 km) |
| Mechernich to Dallgow-Doberitz | 305.46 mi (491.59 km) |
| Mechernich to Damme | 148.44 mi (238.90 km) |
| Mechernich to Darmstadt | 101.79 mi (163.82 km) |
| Mechernich to Dassel | 155.66 mi (250.51 km) |
| Mechernich to Datteln | 78.75 mi (126.74 km) |
| Mechernich to Dautphe | 84.99 mi (136.78 km) |
| Mechernich to Deggendorf | 307.33 mi (494.60 km) |
| Mechernich to Delbruck | 115.70 mi (186.21 km) |
