| Niagara Falls to Butzbach | 3,934.13 mi (6,331.37 km) |
| Niagara Falls to Buxtehude | 3,871.34 mi (6,230.32 km) |
| Niagara Falls to Cadolzburg | 4,053.16 mi (6,522.93 km) |
| Niagara Falls to Calbe | 4,000.40 mi (6,438.02 km) |
| Niagara Falls to Calw | 3,996.25 mi (6,431.35 km) |
| Niagara Falls to Castrop-Rauxel | 3,845.83 mi (6,189.26 km) |
| Niagara Falls to Celle | 3,913.47 mi (6,298.12 km) |
| Niagara Falls to Cham | 4,129.89 mi (6,646.42 km) |
| Niagara Falls to Chemnitz | 4,080.71 mi (6,567.26 km) |
| Niagara Falls to Clausthal-Zellerfeld | 3,950.61 mi (6,357.89 km) |
| Niagara Falls to Cloppenburg | 3,831.29 mi (6,165.87 km) |
| Niagara Falls to Coburg | 4,027.86 mi (6,482.22 km) |
| Niagara Falls to Coesfeld | 3,827.23 mi (6,159.33 km) |
| Niagara Falls to Cologne | 3,851.93 mi (6,199.08 km) |
| Niagara Falls to Coswig | 4,094.42 mi (6,589.34 km) |
