| Piera to Octeville | 583.36 mi (938.83 km) |
| Piera to Oignies | 621.03 mi (999.45 km) |
| Piera to Oissel | 541.22 mi (871.02 km) |
| Piera to Olivet | 438.23 mi (705.27 km) |
| Piera to Ollioules | 237.21 mi (381.76 km) |
| Piera to Olonne-sur-Mer | 388.01 mi (624.43 km) |
| Piera to Oloron-Sainte-Marie | 166.77 mi (268.39 km) |
| Piera to Onet Village | 201.04 mi (323.55 km) |
| Piera to Onnaing | 618.90 mi (996.03 km) |
| Piera to Orange | 238.12 mi (383.22 km) |
| Piera to Orchies | 622.67 mi (1,002.09 km) |
| Piera to Orleans | 440.91 mi (709.57 km) |
| Piera to Orly | 499.95 mi (804.59 km) |
| Piera to Ormesson-sur-Marne | 503.33 mi (810.03 km) |
| Piera to Orsay | 496.26 mi (798.66 km) |
