| Idstein to Creutzwald | 99.46 mi (160.07 km) |
| Idstein to Croissy-sur-Seine | 290.01 mi (466.73 km) |
| Idstein to Croix | 227.57 mi (366.23 km) |
| Idstein to Crosne | 280.90 mi (452.06 km) |
| Idstein to Cuers | 493.58 mi (794.34 km) |
| Idstein to Cugnaux | 565.45 mi (910.00 km) |
| Idstein to Cusset | 358.98 mi (577.72 km) |
| Idstein to Dammarie-le-Lys | 279.37 mi (449.60 km) |
| Idstein to Dammartin-en-Goele | 262.84 mi (423.00 km) |
| Idstein to Dardilly | 345.65 mi (556.27 km) |
| Idstein to Darnetal | 321.82 mi (517.92 km) |
| Idstein to Dax | 628.09 mi (1,010.82 km) |
| Idstein to Decines-Charpieu | 343.54 mi (552.87 km) |
| Idstein to Denain | 215.55 mi (346.89 km) |
| Idstein to Deuil-la-Barre | 279.75 mi (450.22 km) |
