| Calverton to Octeville | 3,633.04 mi (5,846.81 km) |
| Calverton to Oignies | 3,806.29 mi (6,125.63 km) |
| Calverton to Oissel | 3,755.16 mi (6,043.34 km) |
| Calverton to Olivet | 3,827.00 mi (6,158.97 km) |
| Calverton to Ollioules | 4,136.87 mi (6,657.65 km) |
| Calverton to Olonne-sur-Mer | 3,700.54 mi (5,955.45 km) |
| Calverton to Oloron-Sainte-Marie | 3,841.62 mi (6,182.49 km) |
| Calverton to Onet Village | 3,953.83 mi (6,363.07 km) |
| Calverton to Onnaing | 3,833.11 mi (6,168.80 km) |
| Calverton to Orange | 4,059.65 mi (6,533.38 km) |
| Calverton to Orchies | 3,816.42 mi (6,141.93 km) |
| Calverton to Orleans | 3,826.36 mi (6,157.93 km) |
| Calverton to Orly | 3,825.10 mi (6,155.90 km) |
| Calverton to Ormesson-sur-Marne | 3,830.16 mi (6,164.05 km) |
| Calverton to Orsay | 3,817.60 mi (6,143.83 km) |
