| Grefrath to Castelfiorentino | 576.25 mi (927.38 km) |
| Grefrath to Castelfranco di Sopra | 585.58 mi (942.40 km) |
| Grefrath to Castelfranco di Sotto | 566.05 mi (910.97 km) |
| Grefrath to Castelfranco Emilia | 513.89 mi (827.03 km) |
| Grefrath to Castelfranco Veneto | 467.67 mi (752.65 km) |
| Grefrath to Castellabate | 867.94 mi (1,396.82 km) |
| Grefrath to Castellammare del Golfo | 973.16 mi (1,566.15 km) |
| Grefrath to Castellammare di Stabia | 831.36 mi (1,337.94 km) |
| Grefrath to Castellamonte | 416.17 mi (669.76 km) |
| Grefrath to Castellana Grotte | 887.10 mi (1,427.65 km) |
| Grefrath to Castellaneta | 895.50 mi (1,441.17 km) |
| Grefrath to Castellanza | 412.14 mi (663.27 km) |
| Grefrath to Castellarano | 510.68 mi (821.86 km) |
| Grefrath to Castelleone | 445.84 mi (717.50 km) |
| Grefrath to Castelletto sopra Ticino | 402.14 mi (647.19 km) |
