| Troisdorf to Castelfiorentino | 529.52 mi (852.18 km) |
| Troisdorf to Castelfranco di Sopra | 537.95 mi (865.74 km) |
| Troisdorf to Castelfranco di Sotto | 519.60 mi (836.22 km) |
| Troisdorf to Castelfranco Emilia | 466.19 mi (750.26 km) |
| Troisdorf to Castelfranco Veneto | 418.03 mi (672.75 km) |
| Troisdorf to Castellabate | 818.92 mi (1,317.93 km) |
| Troisdorf to Castellammare del Golfo | 927.03 mi (1,491.91 km) |
| Troisdorf to Castellammare di Stabia | 782.49 mi (1,259.30 km) |
| Troisdorf to Castellamonte | 376.33 mi (605.65 km) |
| Troisdorf to Castellana Grotte | 836.89 mi (1,346.84 km) |
| Troisdorf to Castellaneta | 845.41 mi (1,360.55 km) |
| Troisdorf to Castellanza | 368.08 mi (592.37 km) |
| Troisdorf to Castellarano | 463.44 mi (745.83 km) |
| Troisdorf to Castelleone | 399.88 mi (643.54 km) |
| Troisdorf to Castelletto sopra Ticino | 358.81 mi (577.45 km) |
