| Groningen to Ramnicu Sarat | 1,064.82 mi (1,713.66 km) |
| Groningen to Ramnicu Valcea | 976.32 mi (1,571.24 km) |
| Groningen to Rasnov | 994.89 mi (1,601.13 km) |
| Groningen to Reghin | 916.81 mi (1,475.46 km) |
| Groningen to Resita | 878.11 mi (1,413.18 km) |
| Groningen to Roman | 997.35 mi (1,605.08 km) |
| Groningen to Rosiori de Vede | 1,045.10 mi (1,681.93 km) |
| Groningen to Rovinari | 941.52 mi (1,515.22 km) |
| Groningen to Roznov | 984.51 mi (1,584.41 km) |
| Groningen to Sabaoani | 990.92 mi (1,594.73 km) |
| Groningen to Sacele | 1,003.16 mi (1,614.44 km) |
| Groningen to Sacueni | 793.75 mi (1,277.42 km) |
| Groningen to Salcea | 948.59 mi (1,526.61 km) |
| Groningen to Salonta | 800.72 mi (1,288.64 km) |
| Groningen to Sangeorgiu de Mures | 916.77 mi (1,475.40 km) |
