| Boulder to Alesd | 5,613.84 mi (9,034.60 km) |
| Boulder to Alexandria | 5,869.84 mi (9,446.60 km) |
| Boulder to Arad | 5,629.98 mi (9,060.58 km) |
| Boulder to Avrig | 5,745.05 mi (9,245.77 km) |
| Boulder to Babadag | 5,912.59 mi (9,515.39 km) |
| Boulder to Bacau | 5,766.83 mi (9,280.81 km) |
| Boulder to Baia Mare | 5,614.21 mi (9,035.19 km) |
| Boulder to Baia-Sprie | 5,618.01 mi (9,041.32 km) |
| Boulder to Baicoi | 5,824.60 mi (9,373.79 km) |
| Boulder to Bailesti | 5,808.02 mi (9,347.11 km) |
| Boulder to Bals | 5,812.50 mi (9,354.31 km) |
| Boulder to Baraolt | 5,759.24 mi (9,268.60 km) |
| Boulder to Barlad | 5,807.96 mi (9,347.01 km) |
| Boulder to Beclean | 5,657.85 mi (9,105.44 km) |
| Boulder to Beius | 5,634.70 mi (9,068.17 km) |
