| Butte to Opwijk | 4,760.63 mi (7,661.50 km) |
| Butte to Ostend | 4,710.57 mi (7,580.93 km) |
| Butte to Oud-Heverlee | 4,781.51 mi (7,695.09 km) |
| Butte to Oud-Turnhout | 4,765.52 mi (7,669.37 km) |
| Butte to Oudenaarde | 4,749.67 mi (7,643.86 km) |
| Butte to Oudenburg | 4,715.09 mi (7,588.20 km) |
| Butte to Oupeye | 4,816.06 mi (7,750.70 km) |
| Butte to Overijse | 4,780.24 mi (7,693.05 km) |
| Butte to Overpelt | 4,783.06 mi (7,697.59 km) |
| Butte to Paal | 4,785.35 mi (7,701.28 km) |
| Butte to Peer | 4,788.48 mi (7,706.32 km) |
| Butte to Pepinster | 4,828.44 mi (7,770.62 km) |
| Butte to Peruwelz | 4,766.30 mi (7,670.61 km) |
| Butte to Perwez | 4,796.64 mi (7,719.45 km) |
| Butte to Philippeville | 4,810.96 mi (7,742.49 km) |
