| Boulder City to Bicaz | 6,229.73 mi (10,025.78 km) |
| Boulder City to Bistrita | 6,177.71 mi (9,942.07 km) |
| Boulder City to Blaj | 6,219.10 mi (10,008.67 km) |
| Boulder City to Bocsa | 6,207.57 mi (9,990.12 km) |
| Boulder City to Boldesti-Scaeni | 6,339.98 mi (10,203.21 km) |
| Boulder City to Bolintin Vale | 6,367.70 mi (10,247.82 km) |
| Boulder City to Borsa | 6,151.07 mi (9,899.19 km) |
| Boulder City to Botosani | 6,193.55 mi (9,967.56 km) |
| Boulder City to Brad | 6,192.73 mi (9,966.24 km) |
| Boulder City to Bragadiru | 6,377.74 mi (10,263.99 km) |
| Boulder City to Braila | 6,372.66 mi (10,255.80 km) |
| Boulder City to Brasov | 6,291.92 mi (10,125.87 km) |
| Boulder City to Breaza | 6,321.46 mi (10,173.40 km) |
| Boulder City to Bucharest | 6,377.33 mi (10,263.32 km) |
| Boulder City to Buftea | 6,365.29 mi (10,243.94 km) |
