| Porvoo to Crosby | 1,170.12 mi (1,883.12 km) |
| Porvoo to Crowborough | 1,171.91 mi (1,886.01 km) |
| Porvoo to Croxley Green | 1,163.93 mi (1,873.17 km) |
| Porvoo to Croydon | 1,165.83 mi (1,876.23 km) |
| Porvoo to Cudworth | 1,112.40 mi (1,790.23 km) |
| Porvoo to Culcheth | 1,154.41 mi (1,857.84 km) |
| Porvoo to Cullercoats | 1,057.27 mi (1,701.51 km) |
| Porvoo to Cumbernauld | 1,112.91 mi (1,791.05 km) |
| Porvoo to Cumnock | 1,138.56 mi (1,832.33 km) |
| Porvoo to Cupar | 1,067.32 mi (1,717.68 km) |
| Porvoo to Cwmbran | 1,247.37 mi (2,007.45 km) |
| Porvoo to Dagenham | 1,150.04 mi (1,850.81 km) |
| Porvoo to Dalkeith | 1,082.64 mi (1,742.34 km) |
| Porvoo to Darfield | 1,112.91 mi (1,791.06 km) |
| Porvoo to Darlaston | 1,175.24 mi (1,891.36 km) |
