| Groningen to Bumbesti-Jiu | 936.83 mi (1,507.69 km) |
| Groningen to Busteni | 1,005.68 mi (1,618.49 km) |
| Groningen to Buzau | 1,065.43 mi (1,714.64 km) |
| Groningen to Cajvana | 930.72 mi (1,497.84 km) |
| Groningen to Calafat | 979.59 mi (1,576.50 km) |
| Groningen to Calan | 897.71 mi (1,444.73 km) |
| Groningen to Calarasi | 1,126.95 mi (1,813.65 km) |
| Groningen to Campia Turzii | 894.56 mi (1,439.66 km) |
| Groningen to Campina | 1,025.68 mi (1,650.68 km) |
| Groningen to Campulung | 993.70 mi (1,599.20 km) |
| Groningen to Campulung Moldovenesc | 920.50 mi (1,481.40 km) |
| Groningen to Caracal | 1,021.91 mi (1,644.61 km) |
| Groningen to Caransebes | 884.07 mi (1,422.77 km) |
| Groningen to Carei | 794.71 mi (1,278.96 km) |
| Groningen to Cernavoda | 1,147.15 mi (1,846.16 km) |
