| Idar-Oberstein to Caltanissetta | 908.50 mi (1,462.09 km) |
| Idar-Oberstein to Calvisano | 332.90 mi (535.75 km) |
| Idar-Oberstein to Calvizzano | 693.65 mi (1,116.32 km) |
| Idar-Oberstein to Camaiore | 423.38 mi (681.36 km) |
| Idar-Oberstein to Cameri | 297.56 mi (478.87 km) |
| Idar-Oberstein to Camisano Vicentino | 354.92 mi (571.19 km) |
| Idar-Oberstein to Campagna | 730.06 mi (1,174.93 km) |
| Idar-Oberstein to Campagnano di Roma | 577.20 mi (928.91 km) |
| Idar-Oberstein to Campi Bisenzio | 445.46 mi (716.91 km) |
| Idar-Oberstein to Campi Salentina | 827.06 mi (1,331.02 km) |
| Idar-Oberstein to Campiglia Marittima | 485.22 mi (780.89 km) |
| Idar-Oberstein to Campobasso | 664.76 mi (1,069.83 km) |
| Idar-Oberstein to Campobello di Licata | 921.56 mi (1,483.10 km) |
| Idar-Oberstein to Campobello di Mazara | 877.04 mi (1,411.45 km) |
| Idar-Oberstein to Campodarsego | 361.32 mi (581.49 km) |
