| Calne to Oakley (California) | 5,267.07 mi (8,476.53 km) |
| Calne to Oakton (Virginia) | 3,600.90 mi (5,795.09 km) |
| Calne to Oakville (Missouri) | 4,143.02 mi (6,667.54 km) |
| Calne to Oatfield (Oregon) | 4,869.45 mi (7,836.63 km) |
| Calne to Ocala (Florida) | 4,261.86 mi (6,858.80 km) |
| Calne to Ocean Acres (New Jersey) | 3,438.82 mi (5,534.25 km) |
| Calne to Ocean City (New Jersey) | 3,472.82 mi (5,588.97 km) |
| Calne to Ocean Pines (Maryland) | 3,534.42 mi (5,688.10 km) |
| Calne to Ocean Pointe (Hawaii) | 7,203.95 mi (11,593.64 km) |
| Calne to Ocean Springs (Mississippi) | 4,476.42 mi (7,204.10 km) |
| Calne to Oceanside (California) | 5,398.78 mi (8,688.49 km) |
| Calne to Oceanside (New York) | 3,373.91 mi (5,429.78 km) |
| Calne to Ocoee (Florida) | 4,265.46 mi (6,864.60 km) |
| Calne to Oconomowoc (Wisconsin) | 3,855.14 mi (6,204.25 km) |
| Calne to Odenton (Maryland) | 3,568.03 mi (5,742.18 km) |
