| Key Largo to Bispham | 4,327.94 mi (6,965.15 km) |
| Key Largo to Blackburn | 4,351.39 mi (7,002.88 km) |
| Key Largo to Blackpool | 4,327.83 mi (6,964.98 km) |
| Key Largo to Blairgowrie | 4,299.61 mi (6,919.55 km) |
| Key Largo to Blandford Forum | 4,389.67 mi (7,064.50 km) |
| Key Largo to Blaydon | 4,372.67 mi (7,037.13 km) |
| Key Largo to Bletchley | 4,439.45 mi (7,144.61 km) |
| Key Largo to Bloxwich | 4,380.33 mi (7,049.46 km) |
| Key Largo to Blunsdon Saint Andrew | 4,398.51 mi (7,078.72 km) |
| Key Largo to Blyth | 4,379.48 mi (7,048.10 km) |
| Key Largo to Bo'ness | 4,292.28 mi (6,907.75 km) |
| Key Largo to Bodmin | 4,282.11 mi (6,891.39 km) |
| Key Largo to Bognor Regis | 4,454.68 mi (7,169.12 km) |
| Key Largo to Bolsover | 4,404.45 mi (7,088.28 km) |
| Key Largo to Bolton | 4,354.86 mi (7,008.46 km) |
