| Ploermel to Octeville | 122.06 mi (196.43 km) |
| Ploermel to Oignies | 299.84 mi (482.54 km) |
| Ploermel to Oissel | 186.71 mi (300.48 km) |
| Ploermel to Olivet | 199.13 mi (320.48 km) |
| Ploermel to Ollioules | 518.00 mi (833.64 km) |
| Ploermel to Olonne-sur-Mer | 100.78 mi (162.19 km) |
| Ploermel to Oloron-Sainte-Marie | 338.57 mi (544.88 km) |
| Ploermel to Onet Village | 343.06 mi (552.10 km) |
| Ploermel to Onnaing | 319.52 mi (514.22 km) |
| Ploermel to Orange | 433.52 mi (697.68 km) |
| Ploermel to Orchies | 309.28 mi (497.74 km) |
| Ploermel to Orleans | 199.40 mi (320.91 km) |
| Ploermel to Orly | 227.01 mi (365.34 km) |
| Ploermel to Ormesson-sur-Marne | 234.11 mi (376.77 km) |
| Ploermel to Orsay | 217.19 mi (349.54 km) |
