| Grez-Doiceau to Isselburg | 107.71 mi (173.35 km) |
| Grez-Doiceau to Issum | 93.17 mi (149.95 km) |
| Grez-Doiceau to Itzehoe | 299.85 mi (482.56 km) |
| Grez-Doiceau to Jena | 300.70 mi (483.94 km) |
| Grez-Doiceau to Jever | 238.58 mi (383.95 km) |
| Grez-Doiceau to Jork | 286.40 mi (460.91 km) |
| Grez-Doiceau to Juchen | 82.49 mi (132.76 km) |
| Grez-Doiceau to Julich | 73.54 mi (118.35 km) |
| Grez-Doiceau to Juterbog | 371.32 mi (597.58 km) |
| Grez-Doiceau to Kaarst | 89.82 mi (144.56 km) |
| Grez-Doiceau to Kaiserslautern | 162.57 mi (261.63 km) |
| Grez-Doiceau to Kalkar | 97.84 mi (157.46 km) |
| Grez-Doiceau to Kall | 82.03 mi (132.02 km) |
| Grez-Doiceau to Kaltenkirchen | 308.87 mi (497.08 km) |
| Grez-Doiceau to Kamen | 141.50 mi (227.72 km) |
