| Calheta to Opwijk | 1,659.72 mi (2,671.06 km) |
| Calheta to Ostend | 1,631.40 mi (2,625.48 km) |
| Calheta to Oud-Heverlee | 1,669.69 mi (2,687.10 km) |
| Calheta to Oud-Turnhout | 1,701.77 mi (2,738.74 km) |
| Calheta to Oudenaarde | 1,635.36 mi (2,631.86 km) |
| Calheta to Oudenburg | 1,631.89 mi (2,626.27 km) |
| Calheta to Oupeye | 1,697.26 mi (2,731.48 km) |
| Calheta to Overijse | 1,663.01 mi (2,676.35 km) |
| Calheta to Overpelt | 1,711.68 mi (2,754.69 km) |
| Calheta to Paal | 1,695.72 mi (2,728.99 km) |
| Calheta to Peer | 1,709.23 mi (2,750.74 km) |
| Calheta to Pepinster | 1,697.22 mi (2,731.42 km) |
| Calheta to Peruwelz | 1,619.49 mi (2,606.31 km) |
| Calheta to Perwez | 1,665.40 mi (2,680.20 km) |
| Calheta to Philippeville | 1,637.78 mi (2,635.76 km) |
