| Mackworth to Octeville | 228.11 mi (367.11 km) |
| Mackworth to Oignies | 257.79 mi (414.88 km) |
| Mackworth to Oissel | 272.66 mi (438.81 km) |
| Mackworth to Olivet | 381.13 mi (613.36 km) |
| Mackworth to Ollioules | 756.55 mi (1,217.54 km) |
| Mackworth to Olonne-sur-Mer | 441.74 mi (710.91 km) |
| Mackworth to Oloron-Sainte-Marie | 673.88 mi (1,084.50 km) |
| Mackworth to Onet Village | 620.65 mi (998.83 km) |
| Mackworth to Onnaing | 281.39 mi (452.86 km) |
| Mackworth to Orange | 672.52 mi (1,082.31 km) |
| Mackworth to Orchies | 265.70 mi (427.60 km) |
| Mackworth to Orleans | 378.80 mi (609.63 km) |
| Mackworth to Orly | 336.00 mi (540.73 km) |
| Mackworth to Ormesson-sur-Marne | 336.77 mi (541.98 km) |
| Mackworth to Orsay | 334.33 mi (538.05 km) |
