| Grugliasco to Odessa (Texas) | 5,543.97 mi (8,922.16 km) |
| Grugliasco to Ogden (Utah) | 5,402.51 mi (8,694.50 km) |
| Grugliasco to Oildale (California) | 5,952.14 mi (9,579.04 km) |
| Grugliasco to Ojus (Florida) | 4,866.41 mi (7,831.72 km) |
| Grugliasco to Okemos (Michigan) | 4,316.68 mi (6,947.02 km) |
| Grugliasco to Oklahoma City (Oklahoma) | 5,172.98 mi (8,325.10 km) |
| Grugliasco to Okmulgee (Oklahoma) | 5,105.70 mi (8,216.83 km) |
| Grugliasco to Olathe (Kansas) | 4,902.27 mi (7,889.44 km) |
| Grugliasco to Old Jamestown (Missouri) | 4,723.41 mi (7,601.59 km) |
| Grugliasco to Oldsmar (Florida) | 4,886.13 mi (7,863.46 km) |
| Grugliasco to Olean (New York) | 4,095.42 mi (6,590.95 km) |
| Grugliasco to Olive Branch (Mississippi) | 4,883.40 mi (7,859.07 km) |
| Grugliasco to Olivehurst (California) | 5,820.82 mi (9,367.70 km) |
| Grugliasco to Olney (Maryland) | 4,154.69 mi (6,686.33 km) |
| Grugliasco to Olympia (Washington) | 5,398.22 mi (8,687.59 km) |
