| Granbury to Oswego (Illinois) | 822.12 mi (1,323.07 km) |
| Granbury to Oswego (New York) | 1,379.65 mi (2,220.34 km) |
| Granbury to Otsego (Minnesota) | 913.05 mi (1,469.40 km) |
| Granbury to Ottawa (Illinois) | 788.37 mi (1,268.76 km) |
| Granbury to Ottawa (Kansas) | 447.77 mi (720.62 km) |
| Granbury to Ottumwa (Iowa) | 661.92 mi (1,065.25 km) |
| Granbury to Overland (Missouri) | 599.10 mi (964.16 km) |
| Granbury to Overland Park (Kansas) | 477.31 mi (768.16 km) |
| Granbury to Overlea (Maryland) | 1,277.89 mi (2,056.56 km) |
| Granbury to Oviedo (Florida) | 1,019.62 mi (1,640.93 km) |
| Granbury to Owasso (Oklahoma) | 287.44 mi (462.60 km) |
| Granbury to Owatonna (Minnesota) | 840.97 mi (1,353.42 km) |
| Granbury to Owensboro (Kentucky) | 704.44 mi (1,133.69 km) |
| Granbury to Owings Mills (Maryland) | 1,264.68 mi (2,035.31 km) |
| Granbury to Owosso (Michigan) | 1,038.17 mi (1,670.77 km) |
