| Boulder to Beuvry | 4,817.71 mi (7,753.36 km) |
| Boulder to Beziers | 5,156.57 mi (8,298.69 km) |
| Boulder to Bezons | 4,871.20 mi (7,839.44 km) |
| Boulder to Biarritz | 4,966.45 mi (7,992.72 km) |
| Boulder to Biganos | 4,938.99 mi (7,948.54 km) |
| Boulder to Billere | 5,019.62 mi (8,078.30 km) |
| Boulder to Biot | 5,287.51 mi (8,509.43 km) |
| Boulder to Biscarrosse | 4,942.63 mi (7,954.39 km) |
| Boulder to Bischheim | 5,075.68 mi (8,168.52 km) |
| Boulder to Bischwiller | 5,072.06 mi (8,162.69 km) |
| Boulder to Blagnac | 5,073.99 mi (8,165.80 km) |
| Boulder to Blain | 4,789.13 mi (7,707.36 km) |
| Boulder to Blanquefort | 4,940.59 mi (7,951.11 km) |
| Boulder to Blois | 4,897.52 mi (7,881.80 km) |
| Boulder to Bobigny | 4,879.68 mi (7,853.08 km) |
