| Gilroy to Oerlinghausen | 5,597.70 mi (9,008.63 km) |
| Gilroy to Oestrich-Winkel | 5,686.47 mi (9,151.49 km) |
| Gilroy to Offenburg | 5,767.68 mi (9,282.18 km) |
| Gilroy to Oftersheim | 5,736.81 mi (9,232.51 km) |
| Gilroy to Ohrdruf | 5,714.25 mi (9,196.20 km) |
| Gilroy to Ohringen | 5,771.33 mi (9,288.05 km) |
| Gilroy to Olbernhau | 5,789.50 mi (9,317.30 km) |
| Gilroy to Olching | 5,876.19 mi (9,456.82 km) |
| Gilroy to Oldenburg | 5,522.10 mi (8,886.96 km) |
| Gilroy to Oldenburg in Holstein | 5,525.51 mi (8,892.46 km) |
| Gilroy to Olfen | 5,577.07 mi (8,975.43 km) |
| Gilroy to Olpe | 5,626.93 mi (9,055.67 km) |
| Gilroy to Olsberg | 5,626.36 mi (9,054.75 km) |
| Gilroy to Oranienburg | 5,668.66 mi (9,122.83 km) |
| Gilroy to Ortenberg | 5,695.88 mi (9,166.64 km) |
