| Roman to Oxford (Alabama) | 5,486.56 mi (8,829.76 km) |
| Roman to Oxford (Mississippi) | 5,577.77 mi (8,976.56 km) |
| Roman to Oxford (Ohio) | 5,135.57 mi (8,264.90 km) |
| Roman to Oxnard (California) | 6,449.34 mi (10,379.21 km) |
| Roman to Oxon Hill (Maryland) | 4,888.16 mi (7,866.73 km) |
| Roman to Ozark (Alabama) | 5,592.30 mi (8,999.94 km) |
| Roman to Ozark (Missouri) | 5,557.19 mi (8,943.43 km) |
| Roman to Pace (Florida) | 5,693.77 mi (9,163.24 km) |
| Roman to Pacific Grove (California) | 6,350.48 mi (10,220.11 km) |
| Roman to Pacifica (California) | 6,296.92 mi (10,133.91 km) |
| Roman to Paducah (Kentucky) | 5,400.44 mi (8,691.16 km) |
| Roman to Pahrump (Nevada) | 6,249.50 mi (10,057.60 km) |
| Roman to Painesville (Ohio) | 4,899.04 mi (7,884.25 km) |
| Roman to Palatine (Illinois) | 5,111.12 mi (8,225.55 km) |
| Roman to Palatka (Florida) | 5,533.77 mi (8,905.74 km) |
