| Grojec to Octeville | 992.12 mi (1,596.66 km) |
| Grojec to Oignies | 778.37 mi (1,252.66 km) |
| Grojec to Oissel | 881.68 mi (1,418.92 km) |
| Grojec to Olivet | 885.83 mi (1,425.60 km) |
| Grojec to Ollioules | 921.51 mi (1,483.03 km) |
| Grojec to Olonne-sur-Mer | 1,081.08 mi (1,739.83 km) |
| Grojec to Oloron-Sainte-Marie | 1,160.78 mi (1,868.10 km) |
| Grojec to Onet Village | 985.37 mi (1,585.80 km) |
| Grojec to Onnaing | 753.96 mi (1,213.38 km) |
| Grojec to Orange | 911.17 mi (1,466.39 km) |
| Grojec to Orchies | 767.58 mi (1,235.30 km) |
| Grojec to Orleans | 884.34 mi (1,423.21 km) |
| Grojec to Orly | 840.79 mi (1,353.12 km) |
| Grojec to Ormesson-sur-Marne | 833.56 mi (1,341.49 km) |
| Grojec to Orsay | 850.65 mi (1,368.99 km) |
