| Niagara Falls to Brezovica | 4,320.58 mi (6,953.30 km) |
| Niagara Falls to Cankova | 4,355.35 mi (7,009.25 km) |
| Niagara Falls to Celje | 4,345.43 mi (6,993.29 km) |
| Niagara Falls to Cerklje na Gorenjskem | 4,314.27 mi (6,943.14 km) |
| Niagara Falls to Cerknica | 4,327.07 mi (6,963.74 km) |
| Niagara Falls to Cerkno | 4,299.54 mi (6,919.45 km) |
| Niagara Falls to Cerkvenjak | 4,358.57 mi (7,014.43 km) |
| Niagara Falls to Cirkulane | 4,369.45 mi (7,031.95 km) |
| Niagara Falls to Crensovci | 4,371.80 mi (7,035.73 km) |
| Niagara Falls to Crna na Koroskem | 4,319.81 mi (6,952.07 km) |
| Niagara Falls to Crnomelj | 4,368.83 mi (7,030.95 km) |
| Niagara Falls to Destrnik | 4,359.07 mi (7,015.25 km) |
| Niagara Falls to Divaca | 4,316.20 mi (6,946.26 km) |
| Niagara Falls to Dobje | 4,354.33 mi (7,007.62 km) |
| Niagara Falls to Dobrna | 4,339.87 mi (6,984.35 km) |
