| Porvoo to Cento | 1,233.10 mi (1,984.48 km) |
| Porvoo to Cepagatti | 1,337.63 mi (2,152.71 km) |
| Porvoo to Ceprano | 1,399.94 mi (2,252.99 km) |
| Porvoo to Cercola | 1,432.74 mi (2,305.77 km) |
| Porvoo to Cerea | 1,204.95 mi (1,939.18 km) |
| Porvoo to Cerese | 1,223.81 mi (1,969.54 km) |
| Porvoo to Cerignola | 1,385.11 mi (2,229.12 km) |
| Porvoo to Cermenate | 1,219.25 mi (1,962.19 km) |
| Porvoo to Cernusco sul Naviglio | 1,224.92 mi (1,971.32 km) |
| Porvoo to Cerreto Guidi | 1,302.27 mi (2,095.80 km) |
| Porvoo to Cerro Maggiore | 1,228.36 mi (1,976.85 km) |
| Porvoo to Certaldo | 1,313.17 mi (2,113.35 km) |
| Porvoo to Cerveteri | 1,393.69 mi (2,242.92 km) |
| Porvoo to Cervia | 1,243.07 mi (2,000.52 km) |
| Porvoo to Cervignano del Friuli | 1,124.95 mi (1,810.43 km) |
