| Round Rock to Borsbeek | 5,085.52 mi (8,184.35 km) |
| Round Rock to Boussu | 5,084.42 mi (8,182.58 km) |
| Round Rock to Braine-l'Alleud | 5,098.46 mi (8,205.18 km) |
| Round Rock to Braine-le-Chateau | 5,094.33 mi (8,198.54 km) |
| Round Rock to Braine-le-Comte | 5,091.95 mi (8,194.71 km) |
| Round Rock to Brasschaat | 5,082.67 mi (8,179.76 km) |
| Round Rock to Brecht | 5,086.24 mi (8,185.51 km) |
| Round Rock to Bredene | 5,026.86 mi (8,089.95 km) |
| Round Rock to Bree | 5,129.43 mi (8,255.02 km) |
| Round Rock to Bruges | 5,037.18 mi (8,106.56 km) |
| Round Rock to Brussels | 5,092.22 mi (8,195.14 km) |
| Round Rock to Buggenhout | 5,081.32 mi (8,177.60 km) |
| Round Rock to Chapelle-lez-Herlaimont | 5,102.15 mi (8,211.11 km) |
| Round Rock to Charleroi | 5,110.15 mi (8,223.99 km) |
| Round Rock to Chatelet | 5,113.37 mi (8,229.17 km) |
