| Mainz to Castelli Calepio | 309.94 mi (498.81 km) |
| Mainz to Castelnovo ne' Monti | 396.28 mi (637.75 km) |
| Mainz to Castelnuovo Berardenga | 483.39 mi (777.94 km) |
| Mainz to Castelnuovo di Porto | 578.87 mi (931.60 km) |
| Mainz to Castelnuovo di Verona | 335.12 mi (539.33 km) |
| Mainz to Castelnuovo Rangone | 395.61 mi (636.67 km) |
| Mainz to Castelvetrano | 878.85 mi (1,414.38 km) |
| Mainz to Castelvetro di Modena | 399.15 mi (642.37 km) |
| Mainz to Castenaso | 406.85 mi (654.77 km) |
| Mainz to Castenedolo | 325.74 mi (524.23 km) |
| Mainz to Castiglion Fiorentino | 490.18 mi (788.87 km) |
| Mainz to Castiglione del Lago | 505.72 mi (813.87 km) |
| Mainz to Castiglione delle Stiviere | 333.23 mi (536.29 km) |
| Mainz to Castrolibero | 832.69 mi (1,340.08 km) |
| Mainz to Castrovillari | 801.55 mi (1,289.97 km) |
