| Mentor to Bougival | 3,880.93 mi (6,245.75 km) |
| Mentor to Bouguenais | 3,776.53 mi (6,077.74 km) |
| Mentor to Boulogne-Billancourt | 3,885.98 mi (6,253.87 km) |
| Mentor to Boulogne-sur-Mer | 3,803.50 mi (6,121.14 km) |
| Mentor to Bourg-de-Peage | 4,127.92 mi (6,643.25 km) |
| Mentor to Bourg-en-Bresse | 4,094.92 mi (6,590.13 km) |
| Mentor to Bourg-la-Reine | 3,890.72 mi (6,261.51 km) |
| Mentor to Bourg-les-Valence | 4,124.55 mi (6,637.83 km) |
| Mentor to Bourges | 3,947.96 mi (6,353.63 km) |
| Mentor to Bourgoin-Jallieu | 4,118.20 mi (6,627.60 km) |
| Mentor to Bressuire | 3,834.71 mi (6,171.38 km) |
| Mentor to Brest | 3,620.59 mi (5,826.78 km) |
| Mentor to Bretigny-sur-Orge | 3,895.61 mi (6,269.38 km) |
| Mentor to Breuillet | 3,891.55 mi (6,262.84 km) |
| Mentor to Briancon | 4,199.50 mi (6,758.45 km) |
