| Troisdorf to Butzbach | 71.05 mi (114.34 km) |
| Troisdorf to Buxtehude | 213.15 mi (343.03 km) |
| Troisdorf to Cadolzburg | 189.50 mi (304.98 km) |
| Troisdorf to Calbe | 212.97 mi (342.74 km) |
| Troisdorf to Calw | 161.23 mi (259.48 km) |
| Troisdorf to Castrop-Rauxel | 51.19 mi (82.37 km) |
| Troisdorf to Celle | 176.96 mi (284.80 km) |
| Troisdorf to Cham | 267.71 mi (430.84 km) |
| Troisdorf to Chemnitz | 251.39 mi (404.57 km) |
| Troisdorf to Clausthal-Zellerfeld | 153.38 mi (246.85 km) |
| Troisdorf to Cloppenburg | 145.62 mi (234.36 km) |
| Troisdorf to Coburg | 171.58 mi (276.13 km) |
| Troisdorf to Coesfeld | 78.35 mi (126.09 km) |
| Troisdorf to Cologne | 12.14 mi (19.53 km) |
| Troisdorf to Coswig | 280.41 mi (451.27 km) |
