| Idstein to Cavaillon | 466.50 mi (750.76 km) |
| Idstein to Cebazat | 385.98 mi (621.18 km) |
| Idstein to Cenon | 552.50 mi (889.17 km) |
| Idstein to Cergy | 289.67 mi (466.18 km) |
| Idstein to Cernay | 174.05 mi (280.10 km) |
| Idstein to Cesson | 279.47 mi (449.77 km) |
| Idstein to Cesson-Sevigne | 468.79 mi (754.44 km) |
| Idstein to Cestas | 563.26 mi (906.48 km) |
| Idstein to Chalette-sur-Loing | 293.19 mi (471.84 km) |
| Idstein to Challans | 519.11 mi (835.43 km) |
| Idstein to Chalon-sur-Saone | 284.58 mi (457.99 km) |
| Idstein to Chalons-en-Champagne | 195.61 mi (314.80 km) |
| Idstein to Chamalieres | 390.15 mi (627.88 km) |
| Idstein to Chambery | 339.40 mi (546.22 km) |
| Idstein to Chambly | 278.92 mi (448.87 km) |
