| Carroll to Opwijk | 4,384.09 mi (7,055.50 km) |
| Carroll to Ostend | 4,328.76 mi (6,966.46 km) |
| Carroll to Oud-Heverlee | 4,406.62 mi (7,091.76 km) |
| Carroll to Oud-Turnhout | 4,398.53 mi (7,078.75 km) |
| Carroll to Oudenaarde | 4,367.83 mi (7,029.34 km) |
| Carroll to Oudenburg | 4,333.29 mi (6,973.76 km) |
| Carroll to Oupeye | 4,446.33 mi (7,155.67 km) |
| Carroll to Overijse | 4,403.86 mi (7,087.32 km) |
| Carroll to Overpelt | 4,417.80 mi (7,109.76 km) |
| Carroll to Paal | 4,416.33 mi (7,107.40 km) |
| Carroll to Peer | 4,422.48 mi (7,117.29 km) |
| Carroll to Pepinster | 4,458.23 mi (7,174.83 km) |
| Carroll to Peruwelz | 4,380.34 mi (7,049.48 km) |
| Carroll to Perwez | 4,420.28 mi (7,113.75 km) |
| Carroll to Philippeville | 4,427.78 mi (7,125.83 km) |
