| Fort Collins to Bonhill | 4,319.99 mi (6,952.36 km) |
| Fort Collins to Bonnyrigg | 4,371.53 mi (7,035.29 km) |
| Fort Collins to Bootle | 4,469.62 mi (7,193.16 km) |
| Fort Collins to Borehamwood | 4,634.50 mi (7,458.51 km) |
| Fort Collins to Boscombe | 4,618.69 mi (7,433.06 km) |
| Fort Collins to Boston | 4,588.31 mi (7,384.17 km) |
| Fort Collins to Bottesford | 4,542.96 mi (7,311.19 km) |
| Fort Collins to Bourne | 4,584.90 mi (7,378.68 km) |
| Fort Collins to Bournemouth | 4,617.48 mi (7,431.12 km) |
| Fort Collins to Bournville | 4,545.96 mi (7,316.01 km) |
| Fort Collins to Bovingdon | 4,622.74 mi (7,439.58 km) |
| Fort Collins to Bowdon | 4,493.42 mi (7,231.46 km) |
| Fort Collins to Boxley | 4,677.28 mi (7,527.35 km) |
| Fort Collins to Brackley | 4,589.11 mi (7,385.46 km) |
| Fort Collins to Bracknell | 4,628.18 mi (7,448.34 km) |
