| Grenzach-Wyhlen to Ramnicu Sarat | 932.87 mi (1,501.31 km) |
| Grenzach-Wyhlen to Ramnicu Valcea | 813.57 mi (1,309.31 km) |
| Grenzach-Wyhlen to Rasnov | 854.31 mi (1,374.87 km) |
| Grenzach-Wyhlen to Reghin | 801.09 mi (1,289.23 km) |
| Grenzach-Wyhlen to Resita | 694.25 mi (1,117.28 km) |
| Grenzach-Wyhlen to Roman | 902.66 mi (1,452.70 km) |
| Grenzach-Wyhlen to Rosiori de Vede | 865.65 mi (1,393.13 km) |
| Grenzach-Wyhlen to Rovinari | 761.65 mi (1,225.75 km) |
| Grenzach-Wyhlen to Roznov | 884.33 mi (1,423.20 km) |
| Grenzach-Wyhlen to Sabaoani | 897.95 mi (1,445.10 km) |
| Grenzach-Wyhlen to Sacele | 865.44 mi (1,392.79 km) |
| Grenzach-Wyhlen to Sacueni | 673.46 mi (1,083.83 km) |
| Grenzach-Wyhlen to Salcea | 869.62 mi (1,399.52 km) |
| Grenzach-Wyhlen to Salonta | 658.25 mi (1,059.34 km) |
| Grenzach-Wyhlen to Sangeorgiu de Mures | 792.70 mi (1,275.72 km) |
