| Grez-Doiceau to Rodez | 451.95 mi (727.34 km) |
| Grez-Doiceau to Rognac | 501.24 mi (806.66 km) |
| Grez-Doiceau to Roissy-en-Brie | 162.38 mi (261.33 km) |
| Grez-Doiceau to Romainville | 162.85 mi (262.08 km) |
| Grez-Doiceau to Romans-sur-Isere | 393.26 mi (632.90 km) |
| Grez-Doiceau to Rombas | 119.79 mi (192.78 km) |
| Grez-Doiceau to Romilly-sur-Seine | 159.28 mi (256.34 km) |
| Grez-Doiceau to Ronchin | 71.16 mi (114.51 km) |
| Grez-Doiceau to Roncq | 69.08 mi (111.17 km) |
| Grez-Doiceau to Roquebrune-sur-Argens | 511.82 mi (823.70 km) |
| Grez-Doiceau to Roquevaire | 511.94 mi (823.89 km) |
| Grez-Doiceau to Rosny-sous-Bois | 162.48 mi (261.49 km) |
| Grez-Doiceau to Roubaix | 66.49 mi (107.01 km) |
| Grez-Doiceau to Rouen | 183.22 mi (294.87 km) |
| Grez-Doiceau to Rouvroy | 82.25 mi (132.36 km) |
