| Kardzhali to Rhosllanerchrugog | 1,530.11 mi (2,462.48 km) |
| Kardzhali to Rhyl | 1,553.96 mi (2,500.86 km) |
| Kardzhali to Rhymney | 1,513.00 mi (2,434.94 km) |
| Kardzhali to Richmond | 1,384.73 mi (2,228.51 km) |
| Kardzhali to Rickmansworth | 1,395.58 mi (2,245.97 km) |
| Kardzhali to Ripley | 1,467.04 mi (2,360.97 km) |
| Kardzhali to Ripon | 1,500.66 mi (2,415.07 km) |
| Kardzhali to Risca | 1,502.21 mi (2,417.57 km) |
| Kardzhali to Rochdale | 1,510.39 mi (2,430.73 km) |
| Kardzhali to Rochester | 1,350.34 mi (2,173.16 km) |
| Kardzhali to Rock Ferry | 1,536.88 mi (2,473.37 km) |
| Kardzhali to Rogerstone | 1,500.34 mi (2,414.56 km) |
| Kardzhali to Romford | 1,368.06 mi (2,201.68 km) |
| Kardzhali to Romsey | 1,424.12 mi (2,291.90 km) |
| Kardzhali to Ross on Wye | 1,487.63 mi (2,394.11 km) |
