| Four Square Mile to Oerlinghausen | 4,956.32 mi (7,976.43 km) |
| Four Square Mile to Oestrich-Winkel | 5,025.78 mi (8,088.22 km) |
| Four Square Mile to Offenburg | 5,094.73 mi (8,199.18 km) |
| Four Square Mile to Oftersheim | 5,074.39 mi (8,166.44 km) |
| Four Square Mile to Ohrdruf | 5,075.12 mi (8,167.61 km) |
| Four Square Mile to Ohringen | 5,112.64 mi (8,227.99 km) |
| Four Square Mile to Olbernhau | 5,164.04 mi (8,310.72 km) |
| Four Square Mile to Olching | 5,220.24 mi (8,401.17 km) |
| Four Square Mile to Oldenburg | 4,888.00 mi (7,866.47 km) |
| Four Square Mile to Oldenburg in Holstein | 4,915.27 mi (7,910.36 km) |
| Four Square Mile to Olfen | 4,926.85 mi (7,929.00 km) |
| Four Square Mile to Olpe | 4,973.43 mi (8,003.96 km) |
| Four Square Mile to Olsberg | 4,979.02 mi (8,012.95 km) |
| Four Square Mile to Oranienburg | 5,058.96 mi (8,141.60 km) |
| Four Square Mile to Ortenberg | 5,043.73 mi (8,117.10 km) |
