| Carlow to Bitritto | 1,374.80 mi (2,212.52 km) |
| Carlow to Bollate | 879.03 mi (1,414.66 km) |
| Carlow to Bologna | 1,008.95 mi (1,623.75 km) |
| Carlow to Bolzano | 923.81 mi (1,486.72 km) |
| Carlow to Bomporto | 986.61 mi (1,587.79 km) |
| Carlow to Bonate di Sopra | 889.71 mi (1,431.85 km) |
| Carlow to Bondeno | 994.17 mi (1,599.96 km) |
| Carlow to Bordighera | 913.80 mi (1,470.61 km) |
| Carlow to Borgaro Torinese | 845.04 mi (1,359.95 km) |
| Carlow to Borgo a Buggiano | 1,015.19 mi (1,633.79 km) |
| Carlow to Borgo San Dalmazzo | 879.59 mi (1,415.56 km) |
| Carlow to Borgo San Lorenzo | 1,035.60 mi (1,666.64 km) |
| Carlow to Borgomanero | 848.49 mi (1,365.52 km) |
| Carlow to Borgoricco | 987.60 mi (1,589.39 km) |
| Carlow to Borgosatollo | 923.92 mi (1,486.91 km) |
