| Cities | Distance |
|---|---|
| Roman to Orbetello | 830.29 mi (1,336.21 km) |
| Roman to Oria | 641.76 mi (1,032.81 km) |
| Roman to Oristano | 1,036.93 mi (1,668.78 km) |
| Roman to Orta Nova | 676.59 mi (1,088.87 km) |
| Roman to Orte | 776.70 mi (1,249.98 km) |
| Roman to Ortona | 691.42 mi (1,112.73 km) |
| Roman to Orvieto | 780.85 mi (1,256.65 km) |
| Roman to Orzinuovi | 818.54 mi (1,317.31 km) |
| Roman to Osimo | 695.47 mi (1,119.25 km) |
| Roman to Ospitaletto | 809.49 mi (1,302.75 km) |
| Roman to Ostuni | 631.91 mi (1,016.96 km) |
| Roman to Ottaviano | 747.56 mi (1,203.09 km) |
| Roman to Ovada | 892.92 mi (1,437.02 km) |
| Roman to Ozieri | 993.15 mi (1,598.31 km) |
| Roman to Paceco | 956.21 mi (1,538.87 km) |