| Piqua to Cavaillon | 4,355.04 mi (7,008.75 km) |
| Piqua to Cebazat | 4,203.92 mi (6,765.55 km) |
| Piqua to Cenon | 4,080.61 mi (6,567.11 km) |
| Piqua to Cergy | 4,057.36 mi (6,529.70 km) |
| Piqua to Cernay | 4,303.81 mi (6,926.31 km) |
| Piqua to Cesson | 4,093.96 mi (6,588.59 km) |
| Piqua to Cesson-Sevigne | 3,934.50 mi (6,331.96 km) |
| Piqua to Cestas | 4,077.71 mi (6,562.44 km) |
| Piqua to Chalette-sur-Loing | 4,117.16 mi (6,625.93 km) |
| Piqua to Challans | 3,960.90 mi (6,374.45 km) |
| Piqua to Chalon-sur-Saone | 4,244.82 mi (6,831.38 km) |
| Piqua to Chalons-en-Champagne | 4,152.43 mi (6,682.69 km) |
| Piqua to Chamalieres | 4,204.46 mi (6,766.43 km) |
| Piqua to Chambery | 4,330.59 mi (6,969.42 km) |
| Piqua to Chambly | 4,060.76 mi (6,535.16 km) |
