| Norristown to Cavaillon | 3,967.08 mi (6,384.40 km) |
| Norristown to Cebazat | 3,822.15 mi (6,151.15 km) |
| Norristown to Cenon | 3,687.79 mi (5,934.93 km) |
| Norristown to Cergy | 3,690.94 mi (5,939.99 km) |
| Norristown to Cernay | 3,939.73 mi (6,340.39 km) |
| Norristown to Cesson | 3,725.80 mi (5,996.10 km) |
| Norristown to Cesson-Sevigne | 3,557.02 mi (5,724.47 km) |
| Norristown to Cestas | 3,684.09 mi (5,928.97 km) |
| Norristown to Chalette-sur-Loing | 3,746.19 mi (6,028.91 km) |
| Norristown to Challans | 3,576.06 mi (5,755.11 km) |
| Norristown to Chalon-sur-Saone | 3,871.05 mi (6,229.85 km) |
| Norristown to Chalons-en-Champagne | 3,789.50 mi (6,098.62 km) |
| Norristown to Chamalieres | 3,822.34 mi (6,151.46 km) |
| Norristown to Chambery | 3,952.63 mi (6,361.14 km) |
| Norristown to Chambly | 3,695.38 mi (5,947.14 km) |
