| Grefrath to Bistrita | 866.47 mi (1,394.45 km) |
| Grefrath to Blaj | 873.49 mi (1,405.75 km) |
| Grefrath to Bocsa | 814.75 mi (1,311.21 km) |
| Grefrath to Boldesti-Scaeni | 1,002.06 mi (1,612.67 km) |
| Grefrath to Bolintin Vale | 1,013.38 mi (1,630.87 km) |
| Grefrath to Borsa | 858.04 mi (1,380.88 km) |
| Grefrath to Botosani | 941.09 mi (1,514.54 km) |
| Grefrath to Brad | 829.03 mi (1,334.19 km) |
| Grefrath to Bragadiru | 1,025.21 mi (1,649.92 km) |
| Grefrath to Braila | 1,073.24 mi (1,727.21 km) |
| Grefrath to Brasov | 961.78 mi (1,547.83 km) |
| Grefrath to Breaza | 981.10 mi (1,578.93 km) |
| Grefrath to Bucharest | 1,028.00 mi (1,654.41 km) |
| Grefrath to Buftea | 1,016.37 mi (1,635.70 km) |
| Grefrath to Buhusi | 972.47 mi (1,565.04 km) |
