| Brockworth to Orbetello | 901.20 mi (1,450.34 km) |
| Brockworth to Oria | 1,222.19 mi (1,966.92 km) |
| Brockworth to Oristano | 971.37 mi (1,563.28 km) |
| Brockworth to Orta Nova | 1,111.58 mi (1,788.92 km) |
| Brockworth to Orte | 938.78 mi (1,510.82 km) |
| Brockworth to Ortona | 1,014.04 mi (1,631.93 km) |
| Brockworth to Orvieto | 916.13 mi (1,474.37 km) |
| Brockworth to Orzinuovi | 707.76 mi (1,139.04 km) |
| Brockworth to Osimo | 925.84 mi (1,490.00 km) |
| Brockworth to Ospitaletto | 705.43 mi (1,135.28 km) |
| Brockworth to Ostuni | 1,208.72 mi (1,945.25 km) |
| Brockworth to Ottaviano | 1,093.55 mi (1,759.90 km) |
| Brockworth to Ovada | 702.17 mi (1,130.04 km) |
| Brockworth to Ozieri | 941.14 mi (1,514.62 km) |
| Brockworth to Paceco | 1,193.20 mi (1,920.28 km) |
