| Grefrath to Polzela | 528.44 mi (850.44 km) |
| Grefrath to Postojna | 525.95 mi (846.43 km) |
| Grefrath to Prebold | 531.18 mi (854.86 km) |
| Grefrath to Preddvor | 505.35 mi (813.28 km) |
| Grefrath to Prevalje | 510.26 mi (821.18 km) |
| Grefrath to Ptuj | 549.61 mi (884.52 km) |
| Grefrath to Puconci | 547.24 mi (880.70 km) |
| Grefrath to Race | 541.39 mi (871.28 km) |
| Grefrath to Radece | 542.29 mi (872.72 km) |
| Grefrath to Radenci | 545.70 mi (878.22 km) |
| Grefrath to Radlje ob Dravi | 517.83 mi (833.37 km) |
| Grefrath to Radovljica | 495.35 mi (797.19 km) |
| Grefrath to Ravne na Koroskem | 512.06 mi (824.09 km) |
| Grefrath to Razkrizje | 560.22 mi (901.59 km) |
| Grefrath to Recica | 521.18 mi (838.75 km) |
