| Portchester to Belvedere Marittimo | 1,128.44 mi (1,816.05 km) |
| Portchester to Benevento | 1,012.44 mi (1,629.37 km) |
| Portchester to Bergamo | 609.53 mi (980.95 km) |
| Portchester to Bernalda | 1,116.82 mi (1,797.35 km) |
| Portchester to Bertinoro | 770.49 mi (1,239.98 km) |
| Portchester to Besana in Brianza | 595.01 mi (957.58 km) |
| Portchester to Besozzo | 565.74 mi (910.46 km) |
| Portchester to Biancavilla | 1,201.76 mi (1,934.05 km) |
| Portchester to Biassono | 597.40 mi (961.43 km) |
| Portchester to Bibbiano | 685.49 mi (1,103.19 km) |
| Portchester to Bibbiena | 779.97 mi (1,255.24 km) |
| Portchester to Biella | 557.67 mi (897.49 km) |
| Portchester to Bisceglie | 1,069.76 mi (1,721.62 km) |
| Portchester to Bisignano | 1,148.25 mi (1,847.93 km) |
| Portchester to Bitetto | 1,089.00 mi (1,752.58 km) |
