| Rockwall to Owosso (Michigan) | 962.92 mi (1,549.68 km) |
| Rockwall to Oxford (Alabama) | 612.17 mi (985.19 km) |
| Rockwall to Oxford (Mississippi) | 409.40 mi (658.87 km) |
| Rockwall to Oxford (Ohio) | 794.00 mi (1,277.81 km) |
| Rockwall to Oxnard (California) | 1,309.83 mi (2,107.97 km) |
| Rockwall to Oxon Hill (Maryland) | 1,160.25 mi (1,867.25 km) |
| Rockwall to Ozark (Alabama) | 638.75 mi (1,027.97 km) |
| Rockwall to Ozark (Missouri) | 338.00 mi (543.96 km) |
| Rockwall to Pace (Florida) | 567.02 mi (912.54 km) |
| Rockwall to Pacific Grove (California) | 1,464.64 mi (2,357.11 km) |
| Rockwall to Pacifica (California) | 1,499.28 mi (2,412.87 km) |
| Rockwall to Paducah (Kentucky) | 525.99 mi (846.50 km) |
| Rockwall to Pahrump (Nevada) | 1,133.96 mi (1,824.94 km) |
| Rockwall to Painesville (Ohio) | 1,030.09 mi (1,657.76 km) |
| Rockwall to Palatine (Illinois) | 783.83 mi (1,261.45 km) |
