| Porvoo to Broxbourne | 1,145.64 mi (1,843.74 km) |
| Porvoo to Broxburn | 1,095.44 mi (1,762.94 km) |
| Porvoo to Bryn | 1,157.02 mi (1,862.05 km) |
| Porvoo to Buckhurst Hill | 1,149.18 mi (1,849.43 km) |
| Porvoo to Buckie | 1,026.36 mi (1,651.77 km) |
| Porvoo to Buckingham | 1,165.71 mi (1,876.02 km) |
| Porvoo to Buckley | 1,184.61 mi (1,906.45 km) |
| Porvoo to Bucksburn | 1,013.12 mi (1,630.45 km) |
| Porvoo to Bude | 1,334.60 mi (2,147.84 km) |
| Porvoo to Bulwell | 1,128.99 mi (1,816.94 km) |
| Porvoo to Burbage | 1,154.15 mi (1,857.42 km) |
| Porvoo to Burgess Hill | 1,186.02 mi (1,908.71 km) |
| Porvoo to Burnham | 1,175.74 mi (1,892.17 km) |
| Porvoo to Burnham-on-Sea | 1,265.14 mi (2,036.04 km) |
| Porvoo to Burnley | 1,131.78 mi (1,821.42 km) |
