| Opmeer to Chivasso | 535.55 mi (861.88 km) |
| Opmeer to Ciampino | 833.10 mi (1,340.75 km) |
| Opmeer to Cicciano | 926.82 mi (1,491.57 km) |
| Opmeer to Cingoli | 748.38 mi (1,204.40 km) |
| Opmeer to Cinisello Balsamo | 530.11 mi (853.13 km) |
| Opmeer to Cinisi | 1,077.45 mi (1,733.99 km) |
| Opmeer to Cirie | 529.49 mi (852.13 km) |
| Opmeer to Ciro Marina | 1,087.36 mi (1,749.94 km) |
| Opmeer to Cislago | 519.59 mi (836.20 km) |
| Opmeer to Cisterna di Latina | 850.99 mi (1,369.54 km) |
| Opmeer to Cisternino | 1,013.41 mi (1,630.93 km) |
| Opmeer to Citta di Castello | 720.85 mi (1,160.10 km) |
| Opmeer to Citta Sant'Angelo | 819.97 mi (1,319.62 km) |
| Opmeer to Cittadella | 576.09 mi (927.12 km) |
| Opmeer to Cittanova | 1,125.50 mi (1,811.32 km) |
