| Boulder to Apatin | 5,586.49 mi (8,990.59 km) |
| Boulder to Arandelovac | 5,708.02 mi (9,186.17 km) |
| Boulder to Arilje | 5,723.29 mi (9,210.75 km) |
| Boulder to Babusnica | 5,832.44 mi (9,386.41 km) |
| Boulder to Bac | 5,609.28 mi (9,027.27 km) |
| Boulder to Backa Palanka | 5,621.54 mi (9,047.00 km) |
| Boulder to Backa Topola | 5,598.53 mi (9,009.97 km) |
| Boulder to Backi Petrovac | 5,621.58 mi (9,047.06 km) |
| Boulder to Bajina Basta | 5,694.64 mi (9,164.64 km) |
| Boulder to Batajnica | 5,667.37 mi (9,120.76 km) |
| Boulder to Batocina | 5,732.63 mi (9,225.78 km) |
| Boulder to Becej | 5,621.45 mi (9,046.86 km) |
| Boulder to Bela Crkva | 5,702.33 mi (9,177.01 km) |
| Boulder to Bela Palanka | 5,821.02 mi (9,368.02 km) |
| Boulder to Belgrade | 5,677.29 mi (9,136.71 km) |
