| Portchester to Brownhills | 129.47 mi (208.36 km) |
| Portchester to Broxbourne | 78.63 mi (126.55 km) |
| Portchester to Broxburn | 364.86 mi (587.19 km) |
| Portchester to Bryn | 194.78 mi (313.47 km) |
| Portchester to Buckhurst Hill | 74.03 mi (119.13 km) |
| Portchester to Buckie | 477.97 mi (769.22 km) |
| Portchester to Buckingham | 79.87 mi (128.54 km) |
| Portchester to Buckley | 181.39 mi (291.92 km) |
| Portchester to Bucksburn | 439.78 mi (707.76 km) |
| Portchester to Bude | 149.32 mi (240.31 km) |
| Portchester to Bulwell | 149.21 mi (240.13 km) |
| Portchester to Burbage | 116.88 mi (188.10 km) |
| Portchester to Burgess Hill | 43.99 mi (70.79 km) |
| Portchester to Burnham | 52.18 mi (83.97 km) |
| Portchester to Burnham-on-Sea | 85.86 mi (138.17 km) |
