| Castelo Branco to Rhosllanerchrugog | 935.47 mi (1,505.50 km) |
| Castelo Branco to Rhyl | 952.00 mi (1,532.10 km) |
| Castelo Branco to Rhymney | 849.41 mi (1,366.99 km) |
| Castelo Branco to Richmond | 875.15 mi (1,408.42 km) |
| Castelo Branco to Rickmansworth | 883.45 mi (1,421.77 km) |
| Castelo Branco to Ripley | 958.40 mi (1,542.39 km) |
| Castelo Branco to Ripon | 1,027.91 mi (1,654.27 km) |
| Castelo Branco to Risca | 841.61 mi (1,354.44 km) |
| Castelo Branco to Rochdale | 985.55 mi (1,586.09 km) |
| Castelo Branco to Rochester | 886.07 mi (1,426.00 km) |
| Castelo Branco to Rock Ferry | 960.13 mi (1,545.19 km) |
| Castelo Branco to Rogerstone | 840.91 mi (1,353.31 km) |
| Castelo Branco to Romford | 891.90 mi (1,435.37 km) |
| Castelo Branco to Romsey | 824.35 mi (1,326.67 km) |
| Castelo Branco to Ross on Wye | 868.11 mi (1,397.09 km) |
