| Cal to Octeville | 1,723.13 mi (2,773.10 km) |
| Cal to Oignies | 1,548.60 mi (2,492.24 km) |
| Cal to Oissel | 1,600.01 mi (2,574.96 km) |
| Cal to Olivet | 1,534.53 mi (2,469.59 km) |
| Cal to Ollioules | 1,278.96 mi (2,058.29 km) |
| Cal to Olonne-sur-Mer | 1,683.20 mi (2,708.84 km) |
| Cal to Oloron-Sainte-Marie | 1,603.15 mi (2,580.01 km) |
| Cal to Onet Village | 1,451.52 mi (2,335.99 km) |
| Cal to Onnaing | 1,521.98 mi (2,449.39 km) |
| Cal to Orange | 1,340.74 mi (2,157.71 km) |
| Cal to Orchies | 1,538.65 mi (2,476.22 km) |
| Cal to Orleans | 1,534.89 mi (2,470.17 km) |
| Cal to Orly | 1,531.00 mi (2,463.91 km) |
| Cal to Ormesson-sur-Marne | 1,525.66 mi (2,455.32 km) |
| Cal to Orsay | 1,538.88 mi (2,476.59 km) |
