| Idil to Butzbach | 1,864.02 mi (2,999.84 km) |
| Idil to Buxtehude | 1,892.77 mi (3,046.12 km) |
| Idil to Cadolzburg | 1,750.69 mi (2,817.47 km) |
| Idil to Calbe | 1,770.47 mi (2,849.29 km) |
| Idil to Calw | 1,831.05 mi (2,946.79 km) |
| Idil to Castrop-Rauxel | 1,941.92 mi (3,125.21 km) |
| Idil to Celle | 1,855.66 mi (2,986.39 km) |
| Idil to Cham | 1,669.28 mi (2,686.45 km) |
| Idil to Chemnitz | 1,696.80 mi (2,730.73 km) |
| Idil to Clausthal-Zellerfeld | 1,825.06 mi (2,937.15 km) |
| Idil to Cloppenburg | 1,940.62 mi (3,123.12 km) |
| Idil to Coburg | 1,763.54 mi (2,838.14 km) |
| Idil to Coesfeld | 1,956.13 mi (3,148.08 km) |
| Idil to Cologne | 1,945.39 mi (3,130.80 km) |
| Idil to Coswig | 1,678.11 mi (2,700.65 km) |
