| Formia to Oakley (California) | 6,278.31 mi (10,103.97 km) |
| Formia to Oakton (Virginia) | 4,568.96 mi (7,353.03 km) |
| Formia to Oakville (Missouri) | 5,142.93 mi (8,276.74 km) |
| Formia to Oatfield (Oregon) | 5,866.32 mi (9,440.92 km) |
| Formia to Ocala (Florida) | 5,195.18 mi (8,360.84 km) |
| Formia to Ocean Acres (New Jersey) | 4,402.02 mi (7,084.36 km) |
| Formia to Ocean City (New Jersey) | 4,434.34 mi (7,136.38 km) |
| Formia to Ocean Pines (Maryland) | 4,492.68 mi (7,230.28 km) |
| Formia to Ocean Pointe (Hawaii) | 8,079.78 mi (13,003.16 km) |
| Formia to Ocean Springs (Mississippi) | 5,443.04 mi (8,759.72 km) |
| Formia to Oceanside (California) | 6,418.40 mi (10,329.42 km) |
| Formia to Oceanside (New York) | 4,340.16 mi (6,984.81 km) |
| Formia to Ocoee (Florida) | 5,192.43 mi (8,356.40 km) |
| Formia to Oconomowoc (Wisconsin) | 4,863.93 mi (7,827.74 km) |
| Formia to Odenton (Maryland) | 4,535.12 mi (7,298.57 km) |
