| Opmeer to Cassina de' Pecchi | 534.76 mi (860.61 km) |
| Opmeer to Cassino | 877.91 mi (1,412.86 km) |
| Opmeer to Castagneto Carducci | 708.17 mi (1,139.69 km) |
| Opmeer to Castano Primo | 523.10 mi (841.85 km) |
| Opmeer to Castel Bolognese | 657.96 mi (1,058.88 km) |
| Opmeer to Castel Gandolfo | 837.52 mi (1,347.85 km) |
| Opmeer to Castel Goffredo | 569.05 mi (915.79 km) |
| Opmeer to Castel Maggiore | 633.16 mi (1,018.97 km) |
| Opmeer to Castel Mella | 549.94 mi (885.04 km) |
| Opmeer to Castel San Giorgio | 942.02 mi (1,516.03 km) |
| Opmeer to Castel San Giovanni | 566.19 mi (911.19 km) |
| Opmeer to Castel San Pietro Terme | 648.14 mi (1,043.07 km) |
| Opmeer to Castel Volturno | 907.94 mi (1,461.19 km) |
| Opmeer to Castelbuono | 1,110.82 mi (1,787.69 km) |
| Opmeer to Casteldaccia | 1,092.75 mi (1,758.61 km) |
