| Cal to Rhosllanerchrugog | 1,854.16 mi (2,983.99 km) |
| Cal to Rhyl | 1,878.32 mi (3,022.86 km) |
| Cal to Rhymney | 1,834.66 mi (2,952.60 km) |
| Cal to Richmond | 1,707.09 mi (2,747.30 km) |
| Cal to Rickmansworth | 1,718.25 mi (2,765.25 km) |
| Cal to Ripley | 1,791.67 mi (2,883.42 km) |
| Cal to Ripon | 1,826.34 mi (2,939.21 km) |
| Cal to Risca | 1,823.61 mi (2,934.82 km) |
| Cal to Rochdale | 1,835.47 mi (2,953.90 km) |
| Cal to Rochester | 1,672.93 mi (2,692.32 km) |
| Cal to Rock Ferry | 1,861.44 mi (2,995.71 km) |
| Cal to Rogerstone | 1,821.72 mi (2,931.77 km) |
| Cal to Romford | 1,690.91 mi (2,721.26 km) |
| Cal to Romsey | 1,744.78 mi (2,807.95 km) |
| Cal to Ross on Wye | 1,809.92 mi (2,912.79 km) |
