| Martha Lake to Opwijk | 4,908.09 mi (7,898.80 km) |
| Martha Lake to Ostend | 4,861.83 mi (7,824.36 km) |
| Martha Lake to Oud-Heverlee | 4,927.65 mi (7,930.28 km) |
| Martha Lake to Oud-Turnhout | 4,907.88 mi (7,898.48 km) |
| Martha Lake to Oudenaarde | 4,900.12 mi (7,885.98 km) |
| Martha Lake to Oudenburg | 4,866.25 mi (7,831.47 km) |
| Martha Lake to Oupeye | 4,958.77 mi (7,980.37 km) |
| Martha Lake to Overijse | 4,927.19 mi (7,929.55 km) |
| Martha Lake to Overpelt | 4,924.15 mi (7,924.65 km) |
| Martha Lake to Paal | 4,928.35 mi (7,931.41 km) |
| Martha Lake to Peer | 4,929.84 mi (7,933.81 km) |
| Martha Lake to Pepinster | 4,971.14 mi (8,000.27 km) |
| Martha Lake to Peruwelz | 4,918.54 mi (7,915.62 km) |
| Martha Lake to Perwez | 4,943.24 mi (7,955.37 km) |
| Martha Lake to Philippeville | 4,960.81 mi (7,983.66 km) |
