| Rock Island to Butzbach | 4,441.85 mi (7,148.47 km) |
| Rock Island to Buxtehude | 4,359.21 mi (7,015.47 km) |
| Rock Island to Cadolzburg | 4,561.23 mi (7,340.59 km) |
| Rock Island to Calbe | 4,492.87 mi (7,230.58 km) |
| Rock Island to Calw | 4,512.94 mi (7,262.87 km) |
| Rock Island to Castrop-Rauxel | 4,350.23 mi (7,001.01 km) |
| Rock Island to Celle | 4,405.60 mi (7,090.13 km) |
| Rock Island to Cham | 4,635.01 mi (7,459.33 km) |
| Rock Island to Chemnitz | 4,576.51 mi (7,365.18 km) |
| Rock Island to Clausthal-Zellerfeld | 4,446.94 mi (7,156.66 km) |
| Rock Island to Cloppenburg | 4,326.53 mi (6,962.87 km) |
| Rock Island to Coburg | 4,531.34 mi (7,292.49 km) |
| Rock Island to Coesfeld | 4,329.64 mi (6,967.89 km) |
| Rock Island to Cologne | 4,360.57 mi (7,017.65 km) |
| Rock Island to Coswig | 4,586.96 mi (7,382.00 km) |
