| Porvoo to Cankova | 1,021.96 mi (1,644.68 km) |
| Porvoo to Celje | 1,065.27 mi (1,714.39 km) |
| Porvoo to Cerklje na Gorenjskem | 1,077.36 mi (1,733.84 km) |
| Porvoo to Cerknica | 1,108.76 mi (1,784.37 km) |
| Porvoo to Cerkno | 1,093.66 mi (1,760.07 km) |
| Porvoo to Cerkvenjak | 1,033.13 mi (1,662.67 km) |
| Porvoo to Cirkulane | 1,046.91 mi (1,684.84 km) |
| Porvoo to Crensovci | 1,027.26 mi (1,653.21 km) |
| Porvoo to Crna na Koroskem | 1,056.95 mi (1,700.99 km) |
| Porvoo to Crnomelj | 1,109.88 mi (1,786.17 km) |
| Porvoo to Destrnik | 1,038.92 mi (1,671.98 km) |
| Porvoo to Divaca | 1,122.77 mi (1,806.93 km) |
| Porvoo to Dobje | 1,069.70 mi (1,721.51 km) |
| Porvoo to Dobrna | 1,059.23 mi (1,704.67 km) |
| Porvoo to Dobrova | 1,091.19 mi (1,756.10 km) |
