| Round Lake to Bougival | 4,121.66 mi (6,633.16 km) |
| Round Lake to Bouguenais | 4,031.04 mi (6,487.33 km) |
| Round Lake to Boulogne-Billancourt | 4,126.67 mi (6,641.24 km) |
| Round Lake to Boulogne-sur-Mer | 4,036.30 mi (6,495.80 km) |
| Round Lake to Bourg-de-Peage | 4,380.12 mi (7,049.12 km) |
| Round Lake to Bourg-en-Bresse | 4,341.95 mi (6,987.69 km) |
| Round Lake to Bourg-la-Reine | 4,131.55 mi (6,649.09 km) |
| Round Lake to Bourg-les-Valence | 4,377.40 mi (7,044.74 km) |
| Round Lake to Bourges | 4,196.22 mi (6,753.17 km) |
| Round Lake to Bourgoin-Jallieu | 4,367.73 mi (7,029.19 km) |
| Round Lake to Bressuire | 4,088.88 mi (6,580.42 km) |
| Round Lake to Brest | 3,873.99 mi (6,234.58 km) |
| Round Lake to Bretigny-sur-Orge | 4,137.22 mi (6,658.21 km) |
| Round Lake to Breuillet | 4,133.59 mi (6,652.37 km) |
| Round Lake to Briancon | 4,449.34 mi (7,160.52 km) |
