| Forest Hill to Octeville | 4,770.19 mi (7,676.89 km) |
| Forest Hill to Oignies | 4,925.55 mi (7,926.90 km) |
| Forest Hill to Oissel | 4,888.39 mi (7,867.11 km) |
| Forest Hill to Olivet | 4,969.70 mi (7,997.95 km) |
| Forest Hill to Ollioules | 5,301.08 mi (8,531.26 km) |
| Forest Hill to Olonne-sur-Mer | 4,860.75 mi (7,822.62 km) |
| Forest Hill to Oloron-Sainte-Marie | 5,019.58 mi (8,078.23 km) |
| Forest Hill to Onet Village | 5,118.39 mi (8,237.26 km) |
| Forest Hill to Onnaing | 4,951.51 mi (7,968.69 km) |
| Forest Hill to Orange | 5,220.42 mi (8,401.46 km) |
| Forest Hill to Orchies | 4,934.99 mi (7,942.10 km) |
| Forest Hill to Orleans | 4,968.74 mi (7,996.42 km) |
| Forest Hill to Orly | 4,959.92 mi (7,982.22 km) |
| Forest Hill to Ormesson-sur-Marne | 4,964.30 mi (7,989.26 km) |
| Forest Hill to Orsay | 4,953.27 mi (7,971.53 km) |
