| Penarth to Bilecik | 1,757.21 mi (2,827.96 km) |
| Penarth to Bingol | 2,256.87 mi (3,632.08 km) |
| Penarth to Birecik | 2,229.01 mi (3,587.24 km) |
| Penarth to Bitlis | 2,346.18 mi (3,775.82 km) |
| Penarth to Bodrum | 1,791.52 mi (2,883.17 km) |
| Penarth to Bogazliyan | 2,019.53 mi (3,250.11 km) |
| Penarth to Bolu | 1,801.42 mi (2,899.11 km) |
| Penarth to Bolvadin | 1,863.23 mi (2,998.57 km) |
| Penarth to Bor | 2,047.11 mi (3,294.51 km) |
| Penarth to Borcka | 2,208.20 mi (3,553.75 km) |
| Penarth to Boyabat | 1,907.26 mi (3,069.44 km) |
| Penarth to Bozdogan | 1,797.45 mi (2,892.71 km) |
| Penarth to Bozkir | 1,981.17 mi (3,188.38 km) |
| Penarth to Bozkurt | 1,844.16 mi (2,967.89 km) |
| Penarth to Bozuyuk | 1,769.55 mi (2,847.82 km) |
