| Gronau to Castelli Calepio | 472.64 mi (760.64 km) |
| Gronau to Castelnovo ne' Monti | 559.04 mi (899.68 km) |
| Gronau to Castelnuovo Berardenga | 646.30 mi (1,040.12 km) |
| Gronau to Castelnuovo di Porto | 741.56 mi (1,193.43 km) |
| Gronau to Castelnuovo di Verona | 497.93 mi (801.35 km) |
| Gronau to Castelnuovo Rangone | 558.53 mi (898.86 km) |
| Gronau to Castelvetrano | 1,041.69 mi (1,676.44 km) |
| Gronau to Castelvetro di Modena | 562.07 mi (904.56 km) |
| Gronau to Castenaso | 569.45 mi (916.45 km) |
| Gronau to Castenedolo | 488.65 mi (786.41 km) |
| Gronau to Castiglion Fiorentino | 652.89 mi (1,050.72 km) |
| Gronau to Castiglione del Lago | 668.40 mi (1,075.69 km) |
| Gronau to Castiglione delle Stiviere | 496.16 mi (798.49 km) |
| Gronau to Castrolibero | 992.53 mi (1,597.32 km) |
| Gronau to Castrovillari | 960.86 mi (1,546.35 km) |
