| Norristown to Butzbach | 3,923.89 mi (6,314.88 km) |
| Norristown to Buxtehude | 3,878.69 mi (6,242.14 km) |
| Norristown to Cadolzburg | 4,041.73 mi (6,504.53 km) |
| Norristown to Calbe | 4,002.91 mi (6,442.06 km) |
| Norristown to Calw | 3,977.31 mi (6,400.86 km) |
| Norristown to Castrop-Rauxel | 3,839.23 mi (6,178.65 km) |
| Norristown to Celle | 3,916.94 mi (6,303.70 km) |
| Norristown to Cham | 4,120.55 mi (6,631.39 km) |
| Norristown to Chemnitz | 4,079.81 mi (6,565.81 km) |
| Norristown to Clausthal-Zellerfeld | 3,950.23 mi (6,357.27 km) |
| Norristown to Cloppenburg | 3,832.78 mi (6,168.27 km) |
| Norristown to Coburg | 4,020.71 mi (6,470.71 km) |
| Norristown to Coesfeld | 3,822.54 mi (6,151.78 km) |
| Norristown to Cologne | 3,841.49 mi (6,182.28 km) |
| Norristown to Coswig | 4,096.18 mi (6,592.16 km) |
