| Cities | Distance |
|---|---|
| Grefrath to Oegstgeest | 99.23 mi (159.70 km) |
| Grefrath to Oirschot | 46.25 mi (74.43 km) |
| Grefrath to Oisterwijk | 51.99 mi (83.67 km) |
| Grefrath to Oldebroek | 79.21 mi (127.48 km) |
| Grefrath to Oldenzaal | 72.31 mi (116.37 km) |
| Grefrath to Ommen | 81.62 mi (131.36 km) |
| Grefrath to Oosterend | 115.78 mi (186.34 km) |
| Grefrath to Oosterhout | 67.27 mi (108.25 km) |
| Grefrath to Oosterwolde | 114.30 mi (183.95 km) |
| Grefrath to Oostzaan | 98.02 mi (157.75 km) |
| Grefrath to Opmeer | 111.24 mi (179.02 km) |
| Grefrath to Oss | 46.24 mi (74.41 km) |
| Grefrath to Oud-Beijerland | 89.70 mi (144.36 km) |
| Grefrath to Oudenbosch | 80.14 mi (128.97 km) |
| Grefrath to Oudewater | 78.73 mi (126.70 km) |