| Round Rock to Santa Venerina | 6,034.80 mi (9,712.07 km) |
| Round Rock to Santeramo in Colle | 5,971.97 mi (9,610.95 km) |
| Round Rock to Santo Stefano di Magra | 5,553.16 mi (8,936.95 km) |
| Round Rock to Santo Stino di Livenza | 5,603.61 mi (9,018.13 km) |
| Round Rock to Sarezzo | 5,507.92 mi (8,864.15 km) |
| Round Rock to Sarno | 5,882.11 mi (9,466.34 km) |
| Round Rock to Saronno | 5,461.84 mi (8,789.97 km) |
| Round Rock to Sarzana | 5,556.89 mi (8,942.95 km) |
| Round Rock to Sassari | 5,626.21 mi (9,054.52 km) |
| Round Rock to Sasso Marconi | 5,598.72 mi (9,010.27 km) |
| Round Rock to Sassuolo | 5,573.90 mi (8,970.32 km) |
| Round Rock to Sava | 6,022.01 mi (9,691.48 km) |
| Round Rock to Saviano | 5,873.79 mi (9,452.95 km) |
| Round Rock to Savigliano | 5,440.28 mi (8,755.28 km) |
| Round Rock to Savignano sul Panaro | 5,586.65 mi (8,990.84 km) |
