| Guyancourt to Borsbeek | 199.01 mi (320.27 km) |
| Guyancourt to Boussu | 138.30 mi (222.57 km) |
| Guyancourt to Braine-l'Alleud | 167.12 mi (268.95 km) |
| Guyancourt to Braine-le-Chateau | 164.43 mi (264.62 km) |
| Guyancourt to Braine-le-Comte | 156.31 mi (251.56 km) |
| Guyancourt to Brasschaat | 204.55 mi (329.19 km) |
| Guyancourt to Brecht | 211.23 mi (339.94 km) |
| Guyancourt to Bredene | 174.77 mi (281.26 km) |
| Guyancourt to Bree | 225.72 mi (363.26 km) |
| Guyancourt to Bruges | 175.99 mi (283.23 km) |
| Guyancourt to Brussels | 175.72 mi (282.79 km) |
| Guyancourt to Buggenhout | 180.73 mi (290.85 km) |
| Guyancourt to Chapelle-lez-Herlaimont | 153.29 mi (246.69 km) |
| Guyancourt to Charleroi | 154.36 mi (248.42 km) |
| Guyancourt to Chatelet | 156.94 mi (252.57 km) |
