| Porvoo to Bitritto | 1,388.38 mi (2,234.39 km) |
| Porvoo to Bollate | 1,227.68 mi (1,975.77 km) |
| Porvoo to Bologna | 1,247.12 mi (2,007.04 km) |
| Porvoo to Bolzano | 1,120.90 mi (1,803.92 km) |
| Porvoo to Bomporto | 1,238.04 mi (1,992.44 km) |
| Porvoo to Bonate di Sopra | 1,209.53 mi (1,946.55 km) |
| Porvoo to Bondeno | 1,220.98 mi (1,964.98 km) |
| Porvoo to Bordighera | 1,368.80 mi (2,202.88 km) |
| Porvoo to Borgaro Torinese | 1,285.56 mi (2,068.91 km) |
| Porvoo to Borgo a Buggiano | 1,297.80 mi (2,088.61 km) |
| Porvoo to Borgo San Dalmazzo | 1,339.18 mi (2,155.20 km) |
| Porvoo to Borgo San Lorenzo | 1,280.96 mi (2,061.50 km) |
| Porvoo to Borgomanero | 1,233.25 mi (1,984.73 km) |
| Porvoo to Borgoricco | 1,170.16 mi (1,883.18 km) |
| Porvoo to Borgosatollo | 1,207.81 mi (1,943.78 km) |
