| Graz to Olympia Heights (Florida) | 5,193.41 mi (8,357.99 km) |
| Graz to Omaha (Nebraska) | 5,031.58 mi (8,097.55 km) |
| Graz to On Top of the World Designated Place (Florida) | 5,110.73 mi (8,224.93 km) |
| Graz to Onalaska (Wisconsin) | 4,730.82 mi (7,613.53 km) |
| Graz to Oneida (New York) | 4,188.81 mi (6,741.24 km) |
| Graz to Oneonta (New York) | 4,192.02 mi (6,746.41 km) |
| Graz to Ontario (California) | 6,120.93 mi (9,850.69 km) |
| Graz to Ontario (Oregon) | 5,507.75 mi (8,863.87 km) |
| Graz to Opa-locka (Florida) | 5,181.11 mi (8,338.19 km) |
| Graz to Opelika (Alabama) | 5,063.76 mi (8,149.34 km) |
| Graz to Opelousas (Louisiana) | 5,440.36 mi (8,755.41 km) |
| Graz to Orange (California) | 6,141.19 mi (9,883.29 km) |
| Graz to Orange (Texas) | 5,527.17 mi (8,895.13 km) |
| Graz to Orange City (Florida) | 5,076.66 mi (8,170.10 km) |
| Graz to Orangeburg (South Carolina) | 4,838.03 mi (7,786.06 km) |
