| Pacific Grove to Octeville | 5,452.53 mi (8,775.00 km) |
| Pacific Grove to Oignies | 5,551.64 mi (8,934.51 km) |
| Pacific Grove to Oissel | 5,551.95 mi (8,934.99 km) |
| Pacific Grove to Olivet | 5,652.07 mi (9,096.12 km) |
| Pacific Grove to Ollioules | 6,023.85 mi (9,694.44 km) |
| Pacific Grove to Olonne-sur-Mer | 5,599.91 mi (9,012.18 km) |
| Pacific Grove to Oloron-Sainte-Marie | 5,805.46 mi (9,342.99 km) |
| Pacific Grove to Onet Village | 5,853.97 mi (9,421.05 km) |
| Pacific Grove to Onnaing | 5,573.53 mi (8,969.73 km) |
| Pacific Grove to Orange | 5,937.63 mi (9,555.68 km) |
| Pacific Grove to Orchies | 5,558.70 mi (8,945.87 km) |
| Pacific Grove to Orleans | 5,650.36 mi (9,093.37 km) |
| Pacific Grove to Orly | 5,622.25 mi (9,048.13 km) |
| Pacific Grove to Ormesson-sur-Marne | 5,624.54 mi (9,051.82 km) |
| Pacific Grove to Orsay | 5,618.31 mi (9,041.80 km) |
