| Towcester to Bougival | 264.15 mi (425.12 km) |
| Towcester to Bouguenais | 343.34 mi (552.56 km) |
| Towcester to Boulogne-Billancourt | 268.27 mi (431.74 km) |
| Towcester to Boulogne-sur-Mer | 148.29 mi (238.65 km) |
| Towcester to Bourg-de-Peage | 561.98 mi (904.42 km) |
| Towcester to Bourg-en-Bresse | 496.07 mi (798.36 km) |
| Towcester to Bourg-la-Reine | 273.30 mi (439.83 km) |
| Towcester to Bourg-les-Valence | 564.15 mi (907.92 km) |
| Towcester to Bourges | 380.06 mi (611.64 km) |
| Towcester to Bourgoin-Jallieu | 533.87 mi (859.19 km) |
| Towcester to Bressuire | 366.19 mi (589.33 km) |
| Towcester to Brest | 301.04 mi (484.48 km) |
| Towcester to Bretigny-sur-Orge | 283.13 mi (455.65 km) |
| Towcester to Breuillet | 282.89 mi (455.27 km) |
| Towcester to Briancon | 608.90 mi (979.92 km) |
