| Castricum to Oxford (Alabama) | 4,438.75 mi (7,143.48 km) |
| Castricum to Oxford (Mississippi) | 4,540.24 mi (7,306.81 km) |
| Castricum to Oxford (Ohio) | 4,100.38 mi (6,598.93 km) |
| Castricum to Oxnard (California) | 5,557.98 mi (8,944.71 km) |
| Castricum to Oxon Hill (Maryland) | 3,835.47 mi (6,172.59 km) |
| Castricum to Ozark (Alabama) | 4,540.02 mi (7,306.45 km) |
| Castricum to Ozark (Missouri) | 4,539.02 mi (7,304.85 km) |
| Castricum to Pace (Florida) | 4,642.70 mi (7,471.70 km) |
| Castricum to Pacific Grove (California) | 5,491.43 mi (8,837.60 km) |
| Castricum to Pacifica (California) | 5,446.93 mi (8,765.98 km) |
| Castricum to Paducah (Kentucky) | 4,368.20 mi (7,029.94 km) |
| Castricum to Pahrump (Nevada) | 5,344.52 mi (8,601.17 km) |
| Castricum to Painesville (Ohio) | 3,862.25 mi (6,215.70 km) |
| Castricum to Palatine (Illinois) | 4,094.65 mi (6,589.71 km) |
| Castricum to Palatka (Florida) | 4,474.15 mi (7,200.45 km) |
