| Opmeer to Casamassima | 986.70 mi (1,587.94 km) |
| Opmeer to Casandrino | 922.55 mi (1,484.71 km) |
| Opmeer to Casapulla | 914.96 mi (1,472.48 km) |
| Opmeer to Casarano | 1,075.75 mi (1,731.25 km) |
| Opmeer to Casatenovo | 522.07 mi (840.19 km) |
| Opmeer to Casciana Terme | 685.03 mi (1,102.45 km) |
| Opmeer to Cascina | 673.77 mi (1,084.33 km) |
| Opmeer to Caselle Torinese | 533.87 mi (859.17 km) |
| Opmeer to Caserta | 916.08 mi (1,474.28 km) |
| Opmeer to Casier | 588.82 mi (947.62 km) |
| Opmeer to Casorate Primo | 542.19 mi (872.57 km) |
| Opmeer to Casoria | 925.75 mi (1,489.84 km) |
| Opmeer to Cassano al Ionio | 1,041.95 mi (1,676.85 km) |
| Opmeer to Cassano d'Adda | 536.24 mi (863.00 km) |
| Opmeer to Cassano delle Murge | 986.71 mi (1,587.95 km) |
