| Piqua to Caldicot | 3,790.86 mi (6,100.80 km) |
| Piqua to Calne | 3,824.46 mi (6,154.87 km) |
| Piqua to Cam | 3,803.19 mi (6,120.65 km) |
| Piqua to Camberley | 3,877.26 mi (6,239.85 km) |
| Piqua to Camborne | 3,723.71 mi (5,992.73 km) |
| Piqua to Cambridge | 3,886.66 mi (6,254.98 km) |
| Piqua to Cambuslang | 3,634.09 mi (5,848.50 km) |
| Piqua to Canford Cliffs | 3,847.57 mi (6,192.07 km) |
| Piqua to Cannock | 3,790.36 mi (6,099.99 km) |
| Piqua to Canterbury | 3,950.50 mi (6,357.72 km) |
| Piqua to Carlisle | 3,700.65 mi (5,955.62 km) |
| Piqua to Carlton Colville | 3,940.12 mi (6,341.02 km) |
| Piqua to Carluke | 3,648.23 mi (5,871.26 km) |
| Piqua to Carnoustie | 3,671.91 mi (5,909.38 km) |
| Piqua to Carshalton | 3,899.06 mi (6,274.93 km) |
