| Molins de Rey to Oerlinghausen | 793.53 mi (1,277.07 km) |
| Molins de Rey to Oestrich-Winkel | 659.26 mi (1,060.97 km) |
| Molins de Rey to Offenburg | 566.36 mi (911.46 km) |
| Molins de Rey to Oftersheim | 634.90 mi (1,021.77 km) |
| Molins de Rey to Ohrdruf | 771.71 mi (1,241.94 km) |
| Molins de Rey to Ohringen | 648.66 mi (1,043.91 km) |
| Molins de Rey to Olbernhau | 836.74 mi (1,346.61 km) |
| Molins de Rey to Olching | 653.09 mi (1,051.05 km) |
| Molins de Rey to Oldenburg | 860.16 mi (1,384.30 km) |
| Molins de Rey to Oldenburg in Holstein | 978.88 mi (1,575.35 km) |
| Molins de Rey to Olfen | 755.62 mi (1,216.05 km) |
| Molins de Rey to Olpe | 718.86 mi (1,156.90 km) |
| Molins de Rey to Olsberg | 751.83 mi (1,209.96 km) |
| Molins de Rey to Oranienburg | 942.39 mi (1,516.63 km) |
| Molins de Rey to Ortenberg | 703.77 mi (1,132.60 km) |
