| Hockley to Oerlinghausen | 343.99 mi (553.60 km) |
| Hockley to Oestrich-Winkel | 339.88 mi (546.99 km) |
| Hockley to Offenburg | 389.31 mi (626.54 km) |
| Hockley to Oftersheim | 381.65 mi (614.20 km) |
| Hockley to Ohrdruf | 439.87 mi (707.91 km) |
| Hockley to Ohringen | 423.81 mi (682.06 km) |
| Hockley to Olbernhau | 553.55 mi (890.86 km) |
| Hockley to Olching | 529.56 mi (852.24 km) |
| Hockley to Oldenburg | 336.75 mi (541.95 km) |
| Hockley to Oldenburg in Holstein | 464.98 mi (748.32 km) |
| Hockley to Olfen | 289.19 mi (465.41 km) |
| Hockley to Olpe | 313.33 mi (504.26 km) |
| Hockley to Olsberg | 337.98 mi (543.92 km) |
| Hockley to Oranienburg | 539.07 mi (867.54 km) |
| Hockley to Ortenberg | 375.99 mi (605.09 km) |
