| Potomac to Bradford | 3,554.22 mi (5,719.97 km) |
| Potomac to Bradford-on-Avon | 3,582.68 mi (5,765.77 km) |
| Potomac to Bradwell | 3,627.71 mi (5,838.24 km) |
| Potomac to Braintree | 3,685.48 mi (5,931.21 km) |
| Potomac to Bramhall | 3,546.29 mi (5,707.21 km) |
| Potomac to Brandon | 3,675.88 mi (5,915.76 km) |
| Potomac to Braunstone | 3,600.32 mi (5,794.16 km) |
| Potomac to Bredbury | 3,547.12 mi (5,708.54 km) |
| Potomac to Brentwood | 3,681.32 mi (5,924.51 km) |
| Potomac to Bridgnorth | 3,551.92 mi (5,716.26 km) |
| Potomac to Bridgwater | 3,556.52 mi (5,723.67 km) |
| Potomac to Bridlington | 3,609.55 mi (5,809.01 km) |
| Potomac to Bridport | 3,574.40 mi (5,752.44 km) |
| Potomac to Brierley Hill | 3,564.90 mi (5,737.15 km) |
| Potomac to Brighouse | 3,554.26 mi (5,720.03 km) |
