| Penarth to Bougival | 294.28 mi (473.59 km) |
| Penarth to Bouguenais | 301.97 mi (485.97 km) |
| Penarth to Boulogne-Billancourt | 299.16 mi (481.45 km) |
| Penarth to Boulogne-sur-Mer | 213.27 mi (343.22 km) |
| Penarth to Bourg-de-Peage | 580.80 mi (934.71 km) |
| Penarth to Bourg-en-Bresse | 525.03 mi (844.96 km) |
| Penarth to Bourg-la-Reine | 304.20 mi (489.56 km) |
| Penarth to Bourg-les-Valence | 581.21 mi (935.37 km) |
| Penarth to Bourges | 391.13 mi (629.46 km) |
| Penarth to Bourgoin-Jallieu | 558.25 mi (898.42 km) |
| Penarth to Bressuire | 339.45 mi (546.30 km) |
| Penarth to Brest | 218.09 mi (350.98 km) |
| Penarth to Bretigny-sur-Orge | 311.34 mi (501.05 km) |
| Penarth to Breuillet | 308.79 mi (496.94 km) |
| Penarth to Briancon | 637.72 mi (1,026.31 km) |
