| Tarnow to Olympia Heights (Florida) | 5,344.99 mi (8,601.93 km) |
| Tarnow to Omaha (Nebraska) | 5,071.42 mi (8,161.66 km) |
| Tarnow to On Top of the World Designated Place (Florida) | 5,243.59 mi (8,438.74 km) |
| Tarnow to Onalaska (Wisconsin) | 4,776.63 mi (7,687.24 km) |
| Tarnow to Oneida (New York) | 4,286.24 mi (6,898.04 km) |
| Tarnow to Oneonta (New York) | 4,294.10 mi (6,910.68 km) |
| Tarnow to Ontario (California) | 6,101.72 mi (9,819.76 km) |
| Tarnow to Ontario (Oregon) | 5,464.46 mi (8,794.20 km) |
| Tarnow to Opa-locka (Florida) | 5,332.36 mi (8,581.61 km) |
| Tarnow to Opelika (Alabama) | 5,172.85 mi (8,324.89 km) |
| Tarnow to Opelousas (Louisiana) | 5,533.11 mi (8,904.69 km) |
| Tarnow to Orange (California) | 6,121.69 mi (9,851.91 km) |
| Tarnow to Orange (Texas) | 5,615.08 mi (9,036.60 km) |
| Tarnow to Orange City (Florida) | 5,213.58 mi (8,390.44 km) |
| Tarnow to Orangeburg (South Carolina) | 4,959.37 mi (7,981.33 km) |
