| Groningen to Castelletto sopra Ticino | 526.38 mi (847.13 km) |
| Groningen to Castelli Calepio | 544.80 mi (876.77 km) |
| Groningen to Castelnovo ne' Monti | 631.19 mi (1,015.80 km) |
| Groningen to Castelnuovo Berardenga | 718.27 mi (1,155.94 km) |
| Groningen to Castelnuovo di Porto | 813.32 mi (1,308.91 km) |
| Groningen to Castelnuovo di Verona | 569.82 mi (917.03 km) |
| Groningen to Castelnuovo Rangone | 630.52 mi (1,014.72 km) |
| Groningen to Castelvetrano | 1,113.83 mi (1,792.54 km) |
| Groningen to Castelvetro di Modena | 634.06 mi (1,020.43 km) |
| Groningen to Castenaso | 641.18 mi (1,031.88 km) |
| Groningen to Castenedolo | 560.74 mi (902.42 km) |
| Groningen to Castiglion Fiorentino | 724.67 mi (1,166.24 km) |
| Groningen to Castiglione del Lago | 740.16 mi (1,191.17 km) |
| Groningen to Castiglione delle Stiviere | 568.18 mi (914.40 km) |
| Groningen to Castrolibero | 1,062.71 mi (1,710.27 km) |
