| Guyancourt to Benevento | 813.41 mi (1,309.06 km) |
| Guyancourt to Bergamo | 414.66 mi (667.34 km) |
| Guyancourt to Bernalda | 919.20 mi (1,479.31 km) |
| Guyancourt to Bertinoro | 574.75 mi (924.97 km) |
| Guyancourt to Besana in Brianza | 399.02 mi (642.17 km) |
| Guyancourt to Besozzo | 368.76 mi (593.46 km) |
| Guyancourt to Biancavilla | 999.95 mi (1,609.27 km) |
| Guyancourt to Biassono | 401.01 mi (645.37 km) |
| Guyancourt to Bibbiano | 487.89 mi (785.19 km) |
| Guyancourt to Bibbiena | 581.98 mi (936.61 km) |
| Guyancourt to Biella | 357.96 mi (576.08 km) |
| Guyancourt to Bisceglie | 873.71 mi (1,406.10 km) |
| Guyancourt to Bisignano | 948.60 mi (1,526.63 km) |
| Guyancourt to Bitetto | 892.86 mi (1,436.91 km) |
| Guyancourt to Bitonto | 886.43 mi (1,426.57 km) |
