| Opalenica to Calafell | 1,036.58 mi (1,668.21 km) |
| Opalenica to Calahorra | 1,098.98 mi (1,768.64 km) |
| Opalenica to Calasparra | 1,304.87 mi (2,099.98 km) |
| Opalenica to Calatayud | 1,134.91 mi (1,826.46 km) |
| Opalenica to Caldas de Montbuy | 994.03 mi (1,599.74 km) |
| Opalenica to Caldas de Reyes | 1,338.88 mi (2,154.72 km) |
| Opalenica to Calella | 979.53 mi (1,576.41 km) |
| Opalenica to Callosa de Segura | 1,285.18 mi (2,068.29 km) |
| Opalenica to Calpe | 1,227.06 mi (1,974.76 km) |
| Opalenica to Calvia | 1,101.29 mi (1,772.35 km) |
| Opalenica to Camas | 1,494.85 mi (2,405.72 km) |
| Opalenica to Cambados | 1,349.75 mi (2,172.21 km) |
| Opalenica to Cambre | 1,297.76 mi (2,088.55 km) |
| Opalenica to Cambrils | 1,060.13 mi (1,706.12 km) |
| Opalenica to Campo de Criptana | 1,287.87 mi (2,072.63 km) |
