| Caslav to Bouguenais | 799.05 mi (1,285.95 km) |
| Caslav to Boulogne-Billancourt | 595.65 mi (958.61 km) |
| Caslav to Boulogne-sur-Mer | 609.65 mi (981.14 km) |
| Caslav to Bourg-de-Peage | 588.07 mi (946.40 km) |
| Caslav to Bourg-en-Bresse | 534.12 mi (859.59 km) |
| Caslav to Bourg-la-Reine | 593.17 mi (954.62 km) |
| Caslav to Bourg-les-Valence | 597.87 mi (962.18 km) |
| Caslav to Bourges | 625.41 mi (1,006.51 km) |
| Caslav to Bourgoin-Jallieu | 556.43 mi (895.49 km) |
| Caslav to Bressuire | 757.58 mi (1,219.21 km) |
| Caslav to Brest | 902.06 mi (1,451.73 km) |
| Caslav to Bretigny-sur-Orge | 596.20 mi (959.50 km) |
| Caslav to Breuillet | 602.92 mi (970.30 km) |
| Caslav to Briancon | 535.97 mi (862.55 km) |
| Caslav to Brie-Comte-Robert | 581.35 mi (935.60 km) |
