| Porvoo to Costessey | 1,064.92 mi (1,713.82 km) |
| Porvoo to Cottingham | 1,070.91 mi (1,723.46 km) |
| Porvoo to Coulsdon | 1,169.15 mi (1,881.56 km) |
| Porvoo to Coventry | 1,164.65 mi (1,874.32 km) |
| Porvoo to Cowdenbeath | 1,085.60 mi (1,747.10 km) |
| Porvoo to Cowes | 1,232.55 mi (1,983.60 km) |
| Porvoo to Cowley | 1,170.54 mi (1,883.80 km) |
| Porvoo to Cowley | 1,184.89 mi (1,906.90 km) |
| Porvoo to Cramlington | 1,060.64 mi (1,706.93 km) |
| Porvoo to Cranleigh | 1,188.61 mi (1,912.89 km) |
| Porvoo to Crawley | 1,180.61 mi (1,900.01 km) |
| Porvoo to Crayford | 1,153.00 mi (1,855.57 km) |
| Porvoo to Crewe | 1,166.09 mi (1,876.63 km) |
| Porvoo to Crigglestone | 1,113.34 mi (1,791.74 km) |
| Porvoo to Cromer | 1,050.28 mi (1,690.26 km) |
