| Greenlawn to Oerlinghausen | 3,769.38 mi (6,066.23 km) |
| Greenlawn to Oestrich-Winkel | 3,797.22 mi (6,111.04 km) |
| Greenlawn to Offenburg | 3,838.43 mi (6,177.36 km) |
| Greenlawn to Oftersheim | 3,839.00 mi (6,178.27 km) |
| Greenlawn to Ohrdruf | 3,882.83 mi (6,248.82 km) |
| Greenlawn to Ohringen | 3,881.35 mi (6,246.43 km) |
| Greenlawn to Olbernhau | 3,989.93 mi (6,421.17 km) |
| Greenlawn to Olching | 3,986.19 mi (6,415.15 km) |
| Greenlawn to Oldenburg | 3,720.52 mi (5,987.60 km) |
| Greenlawn to Oldenburg in Holstein | 3,790.63 mi (6,100.43 km) |
| Greenlawn to Olfen | 3,725.61 mi (5,995.78 km) |
| Greenlawn to Olpe | 3,762.32 mi (6,054.87 km) |
| Greenlawn to Olsberg | 3,779.02 mi (6,081.75 km) |
| Greenlawn to Oranienburg | 3,922.66 mi (6,312.91 km) |
| Greenlawn to Ortenberg | 3,829.71 mi (6,163.32 km) |
