| Niagara Falls to Kongen | 4,022.33 mi (6,473.31 km) |
| Niagara Falls to Konigs Wusterhausen | 4,053.96 mi (6,524.22 km) |
| Niagara Falls to Konigsbach-Stein | 3,982.65 mi (6,409.46 km) |
| Niagara Falls to Konigsbrunn | 4,096.79 mi (6,593.15 km) |
| Niagara Falls to Konigslutter am Elm | 3,953.15 mi (6,361.98 km) |
| Niagara Falls to Konigstein im Taunus | 3,935.24 mi (6,333.15 km) |
| Niagara Falls to Konigswinter | 3,869.85 mi (6,227.92 km) |
| Niagara Falls to Konstanz | 4,051.26 mi (6,519.88 km) |
| Niagara Falls to Konz | 3,878.32 mi (6,241.55 km) |
| Niagara Falls to Korb | 4,016.46 mi (6,463.87 km) |
| Niagara Falls to Korbach | 3,913.29 mi (6,297.84 km) |
| Niagara Falls to Korntal-Munchingen | 4,007.48 mi (6,449.41 km) |
| Niagara Falls to Kornwestheim | 4,008.94 mi (6,451.77 km) |
| Niagara Falls to Korschenbroich | 3,827.20 mi (6,159.28 km) |
| Niagara Falls to Kosching | 4,100.46 mi (6,599.06 km) |
