| Greenford to Bougival | 214.48 mi (345.17 km) |
| Greenford to Bouguenais | 306.11 mi (492.64 km) |
| Greenford to Boulogne-Billancourt | 218.58 mi (351.78 km) |
| Greenford to Boulogne-sur-Mer | 101.64 mi (163.57 km) |
| Greenford to Bourg-de-Peage | 512.33 mi (824.51 km) |
| Greenford to Bourg-en-Bresse | 446.47 mi (718.53 km) |
| Greenford to Bourg-la-Reine | 223.61 mi (359.87 km) |
| Greenford to Bourg-les-Valence | 514.54 mi (828.07 km) |
| Greenford to Bourges | 331.05 mi (532.78 km) |
| Greenford to Bourgoin-Jallieu | 484.20 mi (779.24 km) |
| Greenford to Bressuire | 324.10 mi (521.59 km) |
| Greenford to Brest | 284.42 mi (457.73 km) |
| Greenford to Bretigny-sur-Orge | 233.46 mi (375.72 km) |
| Greenford to Breuillet | 233.28 mi (375.43 km) |
| Greenford to Briancon | 559.35 mi (900.19 km) |
