| Mechernich to Oakley (California) | 5,560.88 mi (8,949.37 km) |
| Mechernich to Oakton (Virginia) | 3,973.39 mi (6,394.56 km) |
| Mechernich to Oakville (Missouri) | 4,501.77 mi (7,244.90 km) |
| Mechernich to Oatfield (Oregon) | 5,142.51 mi (8,276.07 km) |
| Mechernich to Ocala (Florida) | 4,639.61 mi (7,466.73 km) |
| Mechernich to Ocean Acres (New Jersey) | 3,812.68 mi (6,135.92 km) |
| Mechernich to Ocean City (New Jersey) | 3,847.00 mi (6,191.15 km) |
| Mechernich to Ocean Pines (Maryland) | 3,909.17 mi (6,291.21 km) |
| Mechernich to Ocean Pointe (Hawaii) | 7,380.77 mi (11,878.21 km) |
| Mechernich to Ocean Springs (Mississippi) | 4,848.13 mi (7,802.32 km) |
| Mechernich to Oceanside (California) | 5,715.05 mi (9,197.49 km) |
| Mechernich to Oceanside (New York) | 3,747.17 mi (6,030.48 km) |
| Mechernich to Ocoee (Florida) | 4,643.86 mi (7,473.57 km) |
| Mechernich to Oconomowoc (Wisconsin) | 4,207.38 mi (6,771.12 km) |
| Mechernich to Odenton (Maryland) | 3,940.80 mi (6,342.11 km) |
