| Naperville to Castelfidardo | 4,810.80 mi (7,742.23 km) |
| Naperville to Castelfiorentino | 4,703.36 mi (7,569.32 km) |
| Naperville to Castelfranco di Sopra | 4,725.82 mi (7,605.47 km) |
| Naperville to Castelfranco di Sotto | 4,690.55 mi (7,548.72 km) |
| Naperville to Castelfranco Emilia | 4,665.03 mi (7,507.64 km) |
| Naperville to Castelfranco Veneto | 4,654.50 mi (7,490.70 km) |
| Naperville to Castellabate | 5,006.83 mi (8,057.71 km) |
| Naperville to Castellammare del Golfo | 5,022.25 mi (8,082.53 km) |
| Naperville to Castellammare di Stabia | 4,969.32 mi (7,997.35 km) |
| Naperville to Castellamonte | 4,501.21 mi (7,244.00 km) |
| Naperville to Castellana Grotte | 5,067.42 mi (8,155.22 km) |
| Naperville to Castellaneta | 5,069.64 mi (8,158.79 km) |
| Naperville to Castellanza | 4,538.72 mi (7,304.36 km) |
| Naperville to Castellarano | 4,655.70 mi (7,492.63 km) |
| Naperville to Castelleone | 4,585.51 mi (7,379.67 km) |
