| Catalagzi to Orbetello | 1,060.38 mi (1,706.52 km) |
| Catalagzi to Oria | 744.56 mi (1,198.26 km) |
| Catalagzi to Oristano | 1,220.40 mi (1,964.05 km) |
| Catalagzi to Orta Nova | 835.96 mi (1,345.34 km) |
| Catalagzi to Orte | 1,000.56 mi (1,610.25 km) |
| Catalagzi to Ortona | 898.24 mi (1,445.58 km) |
| Catalagzi to Orvieto | 1,013.84 mi (1,631.62 km) |
| Catalagzi to Orzinuovi | 1,128.83 mi (1,816.67 km) |
| Catalagzi to Osimo | 944.58 mi (1,520.15 km) |
| Catalagzi to Ospitaletto | 1,123.27 mi (1,807.73 km) |
| Catalagzi to Ostuni | 744.53 mi (1,198.20 km) |
| Catalagzi to Ottaviano | 903.94 mi (1,454.76 km) |
| Catalagzi to Ovada | 1,187.70 mi (1,911.42 km) |
| Catalagzi to Ozieri | 1,189.66 mi (1,914.57 km) |
| Catalagzi to Paceco | 1,052.21 mi (1,693.36 km) |
