| Simpelveld to Oerlinghausen | 139.67 mi (224.78 km) |
| Simpelveld to Oestrich-Winkel | 105.82 mi (170.29 km) |
| Simpelveld to Offenburg | 185.31 mi (298.23 km) |
| Simpelveld to Oftersheim | 153.30 mi (246.71 km) |
| Simpelveld to Ohrdruf | 207.23 mi (333.51 km) |
| Simpelveld to Ohringen | 192.61 mi (309.98 km) |
| Simpelveld to Olbernhau | 321.38 mi (517.22 km) |
| Simpelveld to Olching | 300.44 mi (483.51 km) |
| Simpelveld to Oldenburg | 185.71 mi (298.87 km) |
| Simpelveld to Oldenburg in Holstein | 315.64 mi (507.97 km) |
| Simpelveld to Olfen | 85.95 mi (138.32 km) |
| Simpelveld to Olpe | 81.56 mi (131.26 km) |
| Simpelveld to Olsberg | 114.21 mi (183.80 km) |
| Simpelveld to Oranienburg | 337.00 mi (542.35 km) |
| Simpelveld to Ortenberg | 138.71 mi (223.23 km) |
