| Boppard to Castelfiorentino | 484.96 mi (780.47 km) |
| Boppard to Castelfranco di Sopra | 493.26 mi (793.83 km) |
| Boppard to Castelfranco di Sotto | 475.11 mi (764.62 km) |
| Boppard to Castelfranco Emilia | 421.51 mi (678.35 km) |
| Boppard to Castelfranco Veneto | 373.83 mi (601.62 km) |
| Boppard to Castellabate | 774.39 mi (1,246.26 km) |
| Boppard to Castellammare del Golfo | 882.57 mi (1,420.36 km) |
| Boppard to Castellammare di Stabia | 737.92 mi (1,187.56 km) |
| Boppard to Castellamonte | 335.11 mi (539.30 km) |
| Boppard to Castellana Grotte | 793.46 mi (1,276.95 km) |
| Boppard to Castellaneta | 801.74 mi (1,290.27 km) |
| Boppard to Castellanza | 324.54 mi (522.30 km) |
| Boppard to Castellarano | 418.80 mi (674.00 km) |
| Boppard to Castelleone | 355.56 mi (572.21 km) |
| Boppard to Castelletto sopra Ticino | 315.63 mi (507.96 km) |
