| Detroit to Cassina de' Pecchi | 4,332.22 mi (6,972.03 km) |
| Detroit to Cassino | 4,675.89 mi (7,525.11 km) |
| Detroit to Castagneto Carducci | 4,474.66 mi (7,201.27 km) |
| Detroit to Castano Primo | 4,306.78 mi (6,931.09 km) |
| Detroit to Castel Bolognese | 4,477.29 mi (7,205.50 km) |
| Detroit to Castel Gandolfo | 4,616.99 mi (7,430.32 km) |
| Detroit to Castel Goffredo | 4,385.18 mi (7,057.26 km) |
| Detroit to Castel Maggiore | 4,449.86 mi (7,161.36 km) |
| Detroit to Castel Mella | 4,364.29 mi (7,023.64 km) |
| Detroit to Castel San Giorgio | 4,741.89 mi (7,631.33 km) |
| Detroit to Castel San Giovanni | 4,352.92 mi (7,005.35 km) |
| Detroit to Castel San Pietro Terme | 4,465.23 mi (7,186.09 km) |
| Detroit to Castel Volturno | 4,698.31 mi (7,561.20 km) |
| Detroit to Castelbuono | 4,839.36 mi (7,788.19 km) |
| Detroit to Casteldaccia | 4,810.22 mi (7,741.30 km) |
