| Groningen to Cassina de' Pecchi | 546.62 mi (879.70 km) |
| Groningen to Cassino | 877.00 mi (1,411.39 km) |
| Groningen to Castagneto Carducci | 718.51 mi (1,156.33 km) |
| Groningen to Castano Primo | 538.81 mi (867.13 km) |
| Groningen to Castel Bolognese | 659.06 mi (1,060.65 km) |
| Groningen to Castel Gandolfo | 841.13 mi (1,353.67 km) |
| Groningen to Castel Goffredo | 574.58 mi (924.71 km) |
| Groningen to Castel Maggiore | 635.83 mi (1,023.27 km) |
| Groningen to Castel Mella | 556.84 mi (896.15 km) |
| Groningen to Castel San Giorgio | 939.24 mi (1,511.56 km) |
| Groningen to Castel San Giovanni | 578.83 mi (931.54 km) |
| Groningen to Castel San Pietro Terme | 650.14 mi (1,046.29 km) |
| Groningen to Castel Volturno | 907.70 mi (1,460.80 km) |
| Groningen to Castelbuono | 1,115.56 mi (1,795.32 km) |
| Groningen to Casteldaccia | 1,099.36 mi (1,769.25 km) |
