| Somerville to Opwijk | 3,459.55 mi (5,567.60 km) |
| Somerville to Ostend | 3,401.93 mi (5,474.87 km) |
| Somerville to Oud-Heverlee | 3,482.52 mi (5,604.58 km) |
| Somerville to Oud-Turnhout | 3,483.00 mi (5,605.34 km) |
| Somerville to Oudenaarde | 3,438.77 mi (5,534.17 km) |
| Somerville to Oudenburg | 3,406.22 mi (5,481.78 km) |
| Somerville to Oupeye | 3,525.31 mi (5,673.44 km) |
| Somerville to Overijse | 3,478.39 mi (5,597.93 km) |
| Somerville to Overpelt | 3,502.96 mi (5,637.47 km) |
| Somerville to Paal | 3,497.71 mi (5,629.02 km) |
| Somerville to Peer | 3,506.61 mi (5,643.34 km) |
| Somerville to Pepinster | 3,536.08 mi (5,690.77 km) |
| Somerville to Peruwelz | 3,446.42 mi (5,546.47 km) |
| Somerville to Perwez | 3,493.92 mi (5,622.92 km) |
| Somerville to Philippeville | 3,494.10 mi (5,623.21 km) |
