| Torre del Greco to Octeville | 987.86 mi (1,589.80 km) |
| Torre del Greco to Oignies | 864.69 mi (1,391.58 km) |
| Torre del Greco to Oissel | 875.76 mi (1,409.40 km) |
| Torre del Greco to Olivet | 786.14 mi (1,265.17 km) |
| Torre del Greco to Ollioules | 468.07 mi (753.29 km) |
| Torre del Greco to Olonne-sur-Mer | 898.27 mi (1,445.62 km) |
| Torre del Greco to Oloron-Sainte-Marie | 787.04 mi (1,266.62 km) |
| Torre del Greco to Onet Village | 648.65 mi (1,043.91 km) |
| Torre del Greco to Onnaing | 842.45 mi (1,355.78 km) |
| Torre del Greco to Orange | 540.28 mi (869.50 km) |
| Torre del Greco to Orchies | 857.40 mi (1,379.86 km) |
| Torre del Greco to Orleans | 787.31 mi (1,267.05 km) |
| Torre del Greco to Orly | 803.88 mi (1,293.73 km) |
| Torre del Greco to Ormesson-sur-Marne | 800.55 mi (1,288.36 km) |
| Torre del Greco to Orsay | 809.27 mi (1,302.39 km) |
