| North Potomac to Boekel | 3,895.11 mi (6,268.58 km) |
| North Potomac to Bolsward | 3,852.17 mi (6,199.47 km) |
| North Potomac to Borger | 3,904.45 mi (6,283.61 km) |
| North Potomac to Borne | 3,919.25 mi (6,307.43 km) |
| North Potomac to Boskoop | 3,842.81 mi (6,184.41 km) |
| North Potomac to Boxmeer | 3,905.03 mi (6,284.53 km) |
| North Potomac to Boxtel | 3,882.30 mi (6,247.96 km) |
| North Potomac to Breda | 3,859.96 mi (6,212.01 km) |
| North Potomac to Breukelen | 3,854.04 mi (6,202.48 km) |
| North Potomac to Brielle | 3,827.84 mi (6,160.31 km) |
| North Potomac to Bronkhorst | 3,902.80 mi (6,280.95 km) |
| North Potomac to Brummen | 3,901.50 mi (6,278.85 km) |
| North Potomac to Brunssum | 3,924.36 mi (6,315.65 km) |
| North Potomac to Bunnik | 3,866.28 mi (6,222.17 km) |
| North Potomac to Burgum | 3,866.81 mi (6,223.03 km) |
