| Rio Grande City to Rhondda | 5,029.15 mi (8,093.64 km) |
| Rio Grande City to Rhosllanerchrugog | 5,009.17 mi (8,061.48 km) |
| Rio Grande City to Rhyl | 4,985.03 mi (8,022.63 km) |
| Rio Grande City to Rhymney | 5,030.98 mi (8,096.59 km) |
| Rio Grande City to Richmond | 5,157.39 mi (8,300.01 km) |
| Rio Grande City to Rickmansworth | 5,145.92 mi (8,281.55 km) |
| Rio Grande City to Ripley | 5,071.81 mi (8,162.29 km) |
| Rio Grande City to Ripon | 5,039.39 mi (8,110.12 km) |
| Rio Grande City to Risca | 5,042.42 mi (8,114.99 km) |
| Rio Grande City to Rochdale | 5,028.52 mi (8,092.61 km) |
| Rio Grande City to Rochester | 5,191.26 mi (8,354.53 km) |
| Rio Grande City to Rock Ferry | 5,001.99 mi (8,049.92 km) |
| Rio Grande City to Rogerstone | 5,044.34 mi (8,118.09 km) |
| Rio Grande City to Romford | 5,173.05 mi (8,325.22 km) |
| Rio Grande City to Romsey | 5,122.27 mi (8,243.50 km) |
