| Round Rock to Recica | 5,666.72 mi (9,119.71 km) |
| Round Rock to Ribnica | 5,683.38 mi (9,146.51 km) |
| Round Rock to Ribnica | 5,671.34 mi (9,127.14 km) |
| Round Rock to Rogaska Slatina | 5,697.93 mi (9,169.94 km) |
| Round Rock to Rogasovci | 5,689.00 mi (9,155.56 km) |
| Round Rock to Rogatec | 5,700.79 mi (9,174.53 km) |
| Round Rock to Ruse | 5,680.49 mi (9,141.86 km) |
| Round Rock to Salovci | 5,698.08 mi (9,170.18 km) |
| Round Rock to Selnica ob Dravi | 5,679.17 mi (9,139.74 km) |
| Round Rock to Semic | 5,704.22 mi (9,180.06 km) |
| Round Rock to Sempeter pri Gorici | 5,633.21 mi (9,065.77 km) |
| Round Rock to Sencur | 5,650.68 mi (9,093.89 km) |
| Round Rock to Sentilj | 5,679.57 mi (9,140.39 km) |
| Round Rock to Sentjernej | 5,702.67 mi (9,177.57 km) |
| Round Rock to Sentjur | 5,689.26 mi (9,155.98 km) |
