| Citrus Heights to Opwijk | 5,419.70 mi (8,722.16 km) |
| Citrus Heights to Ostend | 5,370.26 mi (8,642.60 km) |
| Citrus Heights to Oud-Heverlee | 5,440.35 mi (8,755.39 km) |
| Citrus Heights to Oud-Turnhout | 5,423.61 mi (8,728.46 km) |
| Citrus Heights to Oudenaarde | 5,409.26 mi (8,705.37 km) |
| Citrus Heights to Oudenburg | 5,374.77 mi (8,649.86 km) |
| Citrus Heights to Oupeye | 5,474.28 mi (8,810.00 km) |
| Citrus Heights to Overijse | 5,439.23 mi (8,753.60 km) |
| Citrus Heights to Overpelt | 5,440.91 mi (8,756.30 km) |
| Citrus Heights to Paal | 5,443.59 mi (8,760.61 km) |
| Citrus Heights to Peer | 5,446.40 mi (8,765.13 km) |
| Citrus Heights to Pepinster | 5,486.67 mi (8,829.94 km) |
| Citrus Heights to Peruwelz | 5,426.22 mi (8,732.65 km) |
| Citrus Heights to Perwez | 5,455.59 mi (8,779.92 km) |
| Citrus Heights to Philippeville | 5,470.51 mi (8,803.94 km) |
